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Finding the Fourth Proportional to 1,151.92, 1,726.16 and 935.92

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Solution

The fourth proportional to 1,151.92, 1,726.16 and 935.92 is: 1,402.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.92 : 1,726.16 = 935.92 : x
  2. Step 2: Convert to fraction form
    1,151.92/1,726.16 = 935.92/x
  3. Step 3: Cross multiply
    1,151.92x = 1,726.16 × 935.92
  4. Step 4: Simplify right side
    1,151.92x = 1,615,547.67
  5. Step 5: Solve for x
    x = 1,615,547.67/1,151.92
  6. Step 6: Final answer
    x = 1,402.48

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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.