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Finding the Fourth Proportional to 42,009.92, 63,024.68 and 13,927.92

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Solution

The fourth proportional to 42,009.92, 63,024.68 and 13,927.92 is: 20,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009.92 : 63,024.68 = 13,927.92 : x
  2. Step 2: Convert to fraction form
    42,009.92/63,024.68 = 13,927.92/x
  3. Step 3: Cross multiply
    42,009.92x = 63,024.68 × 13,927.92
  4. Step 4: Simplify right side
    42,009.92x = 877,802,701.07
  5. Step 5: Solve for x
    x = 877,802,701.07/42,009.92
  6. Step 6: Final answer
    x = 20,895.13

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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.