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Finding the Fourth Proportional to 65,248.90, 97,873.35 and 38,940.10

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Solution

The fourth proportional to 65,248.90, 97,873.35 and 38,940.10 is: 58,410.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,248.90 : 97,873.35 = 38,940.10 : x
  2. Step 2: Convert to fraction form
    65,248.90/97,873.35 = 38,940.10/x
  3. Step 3: Cross multiply
    65,248.90x = 97,873.35 × 38,940.10
  4. Step 4: Simplify right side
    65,248.90x = 3,811,198,036.34
  5. Step 5: Solve for x
    x = 3,811,198,036.34/65,248.90
  6. Step 6: Final answer
    x = 58,410.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.