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Finding the Fourth Proportional to 54,525.60, 76,510.80 and 54,525.60

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Solution

The fourth proportional to 54,525.60, 76,510.80 and 54,525.60 is: 76,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,525.60 : 76,510.80 = 54,525.60 : x
  2. Step 2: Convert to fraction form
    54,525.60/76,510.80 = 54,525.60/x
  3. Step 3: Cross multiply
    54,525.60x = 76,510.80 × 54,525.60
  4. Step 4: Simplify right side
    54,525.60x = 4,171,797,276.48
  5. Step 5: Solve for x
    x = 4,171,797,276.48/54,525.60
  6. Step 6: Final answer
    x = 76,510.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.