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Finding the Fourth Proportional to 1,159.57, 1,734.74 and 1,007.29

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Solution

The fourth proportional to 1,159.57, 1,734.74 and 1,007.29 is: 1,506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.57 : 1,734.74 = 1,007.29 : x
  2. Step 2: Convert to fraction form
    1,159.57/1,734.74 = 1,007.29/x
  3. Step 3: Cross multiply
    1,159.57x = 1,734.74 × 1,007.29
  4. Step 4: Simplify right side
    1,159.57x = 1,747,386.25
  5. Step 5: Solve for x
    x = 1,747,386.25/1,159.57
  6. Step 6: Final answer
    x = 1,506.93

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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.