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Finding the Fourth Proportional to 27,103.84, 40,656.12 and 13,060.90

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Solution

The fourth proportional to 27,103.84, 40,656.12 and 13,060.90 is: 19,591.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,103.84 : 40,656.12 = 13,060.90 : x
  2. Step 2: Convert to fraction form
    27,103.84/40,656.12 = 13,060.90/x
  3. Step 3: Cross multiply
    27,103.84x = 40,656.12 × 13,060.90
  4. Step 4: Simplify right side
    27,103.84x = 531,005,517.71
  5. Step 5: Solve for x
    x = 531,005,517.71/27,103.84
  6. Step 6: Final answer
    x = 19,591.52

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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.