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Finding the Fourth Proportional to 1,133.71, 1,700.91 and 937.82

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Solution

The fourth proportional to 1,133.71, 1,700.91 and 937.82 is: 1,407.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.71 : 1,700.91 = 937.82 : x
  2. Step 2: Convert to fraction form
    1,133.71/1,700.91 = 937.82/x
  3. Step 3: Cross multiply
    1,133.71x = 1,700.91 × 937.82
  4. Step 4: Simplify right side
    1,133.71x = 1,595,151.67
  5. Step 5: Solve for x
    x = 1,595,151.67/1,133.71
  6. Step 6: Final answer
    x = 1,407.02

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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.