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Finding the Fourth Proportional to 71,652.28, 98,882.76 and 39,824.32

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Solution

The fourth proportional to 71,652.28, 98,882.76 and 39,824.32 is: 54,959.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,652.28 : 98,882.76 = 39,824.32 : x
  2. Step 2: Convert to fraction form
    71,652.28/98,882.76 = 39,824.32/x
  3. Step 3: Cross multiply
    71,652.28x = 98,882.76 × 39,824.32
  4. Step 4: Simplify right side
    71,652.28x = 3,937,938,676.72
  5. Step 5: Solve for x
    x = 3,937,938,676.72/71,652.28
  6. Step 6: Final answer
    x = 54,959.01

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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.