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Finding the Fourth Proportional to 71,562.61, 107,343.92 and 27,178.93

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Solution

The fourth proportional to 71,562.61, 107,343.92 and 27,178.93 is: 40,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,562.61 : 107,343.92 = 27,178.93 : x
  2. Step 2: Convert to fraction form
    71,562.61/107,343.92 = 27,178.93/x
  3. Step 3: Cross multiply
    71,562.61x = 107,343.92 × 27,178.93
  4. Step 4: Simplify right side
    71,562.61x = 2,917,492,887.61
  5. Step 5: Solve for x
    x = 2,917,492,887.61/71,562.61
  6. Step 6: Final answer
    x = 40,768.40

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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.