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Finding the Fourth Proportional to 42,513.48, 63,769.48 and 14,810.76

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Solution

The fourth proportional to 42,513.48, 63,769.48 and 14,810.76 is: 22,215.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,513.48 : 63,769.48 = 14,810.76 : x
  2. Step 2: Convert to fraction form
    42,513.48/63,769.48 = 14,810.76/x
  3. Step 3: Cross multiply
    42,513.48x = 63,769.48 × 14,810.76
  4. Step 4: Simplify right side
    42,513.48x = 944,474,463.60
  5. Step 5: Solve for x
    x = 944,474,463.60/42,513.48
  6. Step 6: Final answer
    x = 22,215.88

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1.5x scale

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.