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Finding the Fourth Proportional to 14,038.92, 21,061.62 and 7,471.44

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Solution

The fourth proportional to 14,038.92, 21,061.62 and 7,471.44 is: 11,208.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.92 : 21,061.62 = 7,471.44 : x
  2. Step 2: Convert to fraction form
    14,038.92/21,061.62 = 7,471.44/x
  3. Step 3: Cross multiply
    14,038.92x = 21,061.62 × 7,471.44
  4. Step 4: Simplify right side
    14,038.92x = 157,360,630.13
  5. Step 5: Solve for x
    x = 157,360,630.13/14,038.92
  6. Step 6: Final answer
    x = 11,208.88

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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.