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Finding the Fourth Proportional to 48,242.79, 72,358.72 and 18,652.68

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Solution

The fourth proportional to 48,242.79, 72,358.72 and 18,652.68 is: 27,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,242.79 : 72,358.72 = 18,652.68 : x
  2. Step 2: Convert to fraction form
    48,242.79/72,358.72 = 18,652.68/x
  3. Step 3: Cross multiply
    48,242.79x = 72,358.72 × 18,652.68
  4. Step 4: Simplify right side
    48,242.79x = 1,349,684,002.74
  5. Step 5: Solve for x
    x = 1,349,684,002.74/48,242.79
  6. Step 6: Final answer
    x = 27,976.91

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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.