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Finding the Fourth Proportional to 71,483.52, 98,643.92 and 39,652.08

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Solution

The fourth proportional to 71,483.52, 98,643.92 and 39,652.08 is: 54,718.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,483.52 : 98,643.92 = 39,652.08 : x
  2. Step 2: Convert to fraction form
    71,483.52/98,643.92 = 39,652.08/x
  3. Step 3: Cross multiply
    71,483.52x = 98,643.92 × 39,652.08
  4. Step 4: Simplify right side
    71,483.52x = 3,911,436,607.35
  5. Step 5: Solve for x
    x = 3,911,436,607.35/71,483.52
  6. Step 6: Final answer
    x = 54,718.02

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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.