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Finding the Fourth Proportional to 1,061.52, 1,465.16 and 751.12

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Solution

The fourth proportional to 1,061.52, 1,465.16 and 751.12 is: 1,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.52 : 1,465.16 = 751.12 : x
  2. Step 2: Convert to fraction form
    1,061.52/1,465.16 = 751.12/x
  3. Step 3: Cross multiply
    1,061.52x = 1,465.16 × 751.12
  4. Step 4: Simplify right side
    1,061.52x = 1,100,510.98
  5. Step 5: Solve for x
    x = 1,100,510.98/1,061.52
  6. Step 6: Final answer
    x = 1,036.73

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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.