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Finding the Fourth Proportional to 51,392.80, 72,053.60 and 51,392.80

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Solution

The fourth proportional to 51,392.80, 72,053.60 and 51,392.80 is: 72,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,392.80 : 72,053.60 = 51,392.80 : x
  2. Step 2: Convert to fraction form
    51,392.80/72,053.60 = 51,392.80/x
  3. Step 3: Cross multiply
    51,392.80x = 72,053.60 × 51,392.80
  4. Step 4: Simplify right side
    51,392.80x = 3,703,036,254.08
  5. Step 5: Solve for x
    x = 3,703,036,254.08/51,392.80
  6. Step 6: Final answer
    x = 72,053.60

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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.