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Finding the Fourth Proportional to 19,807.59, 27,334.68 and 10,854.89

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Solution

The fourth proportional to 19,807.59, 27,334.68 and 10,854.89 is: 14,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,807.59 : 27,334.68 = 10,854.89 : x
  2. Step 2: Convert to fraction form
    19,807.59/27,334.68 = 10,854.89/x
  3. Step 3: Cross multiply
    19,807.59x = 27,334.68 × 10,854.89
  4. Step 4: Simplify right side
    19,807.59x = 296,715,084.53
  5. Step 5: Solve for x
    x = 296,715,084.53/19,807.59
  6. Step 6: Final answer
    x = 14,979.87

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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.