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Finding the Fourth Proportional to 1,156.14, 1,726.65 and 925.38

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Solution

The fourth proportional to 1,156.14, 1,726.65 and 925.38 is: 1,382.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.14 : 1,726.65 = 925.38 : x
  2. Step 2: Convert to fraction form
    1,156.14/1,726.65 = 925.38/x
  3. Step 3: Cross multiply
    1,156.14x = 1,726.65 × 925.38
  4. Step 4: Simplify right side
    1,156.14x = 1,597,807.38
  5. Step 5: Solve for x
    x = 1,597,807.38/1,156.14
  6. Step 6: Final answer
    x = 1,382.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.