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Finding the Fourth Proportional to 14,411.52, 19,881.86 and 9,374.13

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Solution

The fourth proportional to 14,411.52, 19,881.86 and 9,374.13 is: 12,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,411.52 : 19,881.86 = 9,374.13 : x
  2. Step 2: Convert to fraction form
    14,411.52/19,881.86 = 9,374.13/x
  3. Step 3: Cross multiply
    14,411.52x = 19,881.86 × 9,374.13
  4. Step 4: Simplify right side
    14,411.52x = 186,375,093.41
  5. Step 5: Solve for x
    x = 186,375,093.41/14,411.52
  6. Step 6: Final answer
    x = 12,932.37

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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.