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Finding the Fourth Proportional to 1,475.38, 2,037.02 and 916.07

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Solution

The fourth proportional to 1,475.38, 2,037.02 and 916.07 is: 1,264.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.38 : 2,037.02 = 916.07 : x
  2. Step 2: Convert to fraction form
    1,475.38/2,037.02 = 916.07/x
  3. Step 3: Cross multiply
    1,475.38x = 2,037.02 × 916.07
  4. Step 4: Simplify right side
    1,475.38x = 1,866,052.91
  5. Step 5: Solve for x
    x = 1,866,052.91/1,475.38
  6. Step 6: Final answer
    x = 1,264.79

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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.