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Finding the Fourth Proportional to 3,061.13, 4,591.71 and 752.63

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Solution

The fourth proportional to 3,061.13, 4,591.71 and 752.63 is: 1,128.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.13 : 4,591.71 = 752.63 : x
  2. Step 2: Convert to fraction form
    3,061.13/4,591.71 = 752.63/x
  3. Step 3: Cross multiply
    3,061.13x = 4,591.71 × 752.63
  4. Step 4: Simplify right side
    3,061.13x = 3,455,835.74
  5. Step 5: Solve for x
    x = 3,455,835.74/3,061.13
  6. Step 6: Final answer
    x = 1,128.94

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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.