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Finding the Fourth Proportional to 7,275.12, 10,851.48 and 7,056.48

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Solution

The fourth proportional to 7,275.12, 10,851.48 and 7,056.48 is: 10,525.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.12 : 10,851.48 = 7,056.48 : x
  2. Step 2: Convert to fraction form
    7,275.12/10,851.48 = 7,056.48/x
  3. Step 3: Cross multiply
    7,275.12x = 10,851.48 × 7,056.48
  4. Step 4: Simplify right side
    7,275.12x = 76,573,251.59
  5. Step 5: Solve for x
    x = 76,573,251.59/7,275.12
  6. Step 6: Final answer
    x = 10,525.36

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.