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Finding the Fourth Proportional to 77,560.47, 116,340.71 and 22,156.47

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Solution

The fourth proportional to 77,560.47, 116,340.71 and 22,156.47 is: 33,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,560.47 : 116,340.71 = 22,156.47 : x
  2. Step 2: Convert to fraction form
    77,560.47/116,340.71 = 22,156.47/x
  3. Step 3: Cross multiply
    77,560.47x = 116,340.71 × 22,156.47
  4. Step 4: Simplify right side
    77,560.47x = 2,577,699,340.11
  5. Step 5: Solve for x
    x = 2,577,699,340.11/77,560.47
  6. Step 6: Final answer
    x = 33,234.71

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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.