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Finding the Fourth Proportional to 48,750.62, 73,128.54 and 13,693.01

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Solution

The fourth proportional to 48,750.62, 73,128.54 and 13,693.01 is: 20,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,750.62 : 73,128.54 = 13,693.01 : x
  2. Step 2: Convert to fraction form
    48,750.62/73,128.54 = 13,693.01/x
  3. Step 3: Cross multiply
    48,750.62x = 73,128.54 × 13,693.01
  4. Step 4: Simplify right side
    48,750.62x = 1,001,349,463.86
  5. Step 5: Solve for x
    x = 1,001,349,463.86/48,750.62
  6. Step 6: Final answer
    x = 20,540.24

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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.