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Finding the Fourth Proportional to 71,484.01, 98,646.39 and 39,652.22

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Solution

The fourth proportional to 71,484.01, 98,646.39 and 39,652.22 is: 54,719.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,484.01 : 98,646.39 = 39,652.22 : x
  2. Step 2: Convert to fraction form
    71,484.01/98,646.39 = 39,652.22/x
  3. Step 3: Cross multiply
    71,484.01x = 98,646.39 × 39,652.22
  4. Step 4: Simplify right side
    71,484.01x = 3,911,548,605.10
  5. Step 5: Solve for x
    x = 3,911,548,605.10/71,484.01
  6. Step 6: Final answer
    x = 54,719.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.