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Finding the Fourth Proportional to 42,471, 63,707.04 and 14,769

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Solution

The fourth proportional to 42,471, 63,707.04 and 14,769 is: 22,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,471 : 63,707.04 = 14,769 : x
  2. Step 2: Convert to fraction form
    42,471/63,707.04 = 14,769/x
  3. Step 3: Cross multiply
    42,471x = 63,707.04 × 14,769
  4. Step 4: Simplify right side
    42,471x = 940,889,273.76
  5. Step 5: Solve for x
    x = 940,889,273.76/42,471
  6. Step 6: Final answer
    x = 22,153.69

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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.