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Finding the Fourth Proportional to 48,504.08, 72,748.92 and 13,440.08

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Solution

The fourth proportional to 48,504.08, 72,748.92 and 13,440.08 is: 20,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,504.08 : 72,748.92 = 13,440.08 : x
  2. Step 2: Convert to fraction form
    48,504.08/72,748.92 = 13,440.08/x
  3. Step 3: Cross multiply
    48,504.08x = 72,748.92 × 13,440.08
  4. Step 4: Simplify right side
    48,504.08x = 977,751,304.71
  5. Step 5: Solve for x
    x = 977,751,304.71/48,504.08
  6. Step 6: Final answer
    x = 20,158.12

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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.