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Finding the Fourth Proportional to 14,398.17, 19,872.75 and 9,353.61

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Solution

The fourth proportional to 14,398.17, 19,872.75 and 9,353.61 is: 12,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,398.17 : 19,872.75 = 9,353.61 : x
  2. Step 2: Convert to fraction form
    14,398.17/19,872.75 = 9,353.61/x
  3. Step 3: Cross multiply
    14,398.17x = 19,872.75 × 9,353.61
  4. Step 4: Simplify right side
    14,398.17x = 185,881,953.13
  5. Step 5: Solve for x
    x = 185,881,953.13/14,398.17
  6. Step 6: Final answer
    x = 12,910.11

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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.