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Finding the Fourth Proportional to 56,691.61, 78,208.25 and 36,554.96

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Solution

The fourth proportional to 56,691.61, 78,208.25 and 36,554.96 is: 50,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,691.61 : 78,208.25 = 36,554.96 : x
  2. Step 2: Convert to fraction form
    56,691.61/78,208.25 = 36,554.96/x
  3. Step 3: Cross multiply
    56,691.61x = 78,208.25 × 36,554.96
  4. Step 4: Simplify right side
    56,691.61x = 2,858,899,072.12
  5. Step 5: Solve for x
    x = 2,858,899,072.12/56,691.61
  6. Step 6: Final answer
    x = 50,428.96

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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.