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Finding the Fourth Proportional to 71,362.92, 98,483.52 and 39,531.12

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Solution

The fourth proportional to 71,362.92, 98,483.52 and 39,531.12 is: 54,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,362.92 : 98,483.52 = 39,531.12 : x
  2. Step 2: Convert to fraction form
    71,362.92/98,483.52 = 39,531.12/x
  3. Step 3: Cross multiply
    71,362.92x = 98,483.52 × 39,531.12
  4. Step 4: Simplify right side
    71,362.92x = 3,893,163,847.14
  5. Step 5: Solve for x
    x = 3,893,163,847.14/71,362.92
  6. Step 6: Final answer
    x = 54,554.44

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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.