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Finding the Fourth Proportional to 1,095.52, 1,641.90 and 958.24

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Solution

The fourth proportional to 1,095.52, 1,641.90 and 958.24 is: 1,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.52 : 1,641.90 = 958.24 : x
  2. Step 2: Convert to fraction form
    1,095.52/1,641.90 = 958.24/x
  3. Step 3: Cross multiply
    1,095.52x = 1,641.90 × 958.24
  4. Step 4: Simplify right side
    1,095.52x = 1,573,334.26
  5. Step 5: Solve for x
    x = 1,573,334.26/1,095.52
  6. Step 6: Final answer
    x = 1,436.15

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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.