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Finding the Fourth Proportional to 48,478.60, 72,717.90 and 15,201.57

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Solution

The fourth proportional to 48,478.60, 72,717.90 and 15,201.57 is: 22,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,478.60 : 72,717.90 = 15,201.57 : x
  2. Step 2: Convert to fraction form
    48,478.60/72,717.90 = 15,201.57/x
  3. Step 3: Cross multiply
    48,478.60x = 72,717.90 × 15,201.57
  4. Step 4: Simplify right side
    48,478.60x = 1,105,426,548.30
  5. Step 5: Solve for x
    x = 1,105,426,548.30/48,478.60
  6. Step 6: Final answer
    x = 22,802.36

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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.