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Finding the Fourth Proportional to 14,061.60, 19,398.12 and 8,392.62

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Solution

The fourth proportional to 14,061.60, 19,398.12 and 8,392.62 is: 11,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,061.60 : 19,398.12 = 8,392.62 : x
  2. Step 2: Convert to fraction form
    14,061.60/19,398.12 = 8,392.62/x
  3. Step 3: Cross multiply
    14,061.60x = 19,398.12 × 8,392.62
  4. Step 4: Simplify right side
    14,061.60x = 162,801,049.87
  5. Step 5: Solve for x
    x = 162,801,049.87/14,061.60
  6. Step 6: Final answer
    x = 11,577.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.