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Finding the Fourth Proportional to 1,176.07, 1,772.18 and 975.14

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Solution

The fourth proportional to 1,176.07, 1,772.18 and 975.14 is: 1,469.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.07 : 1,772.18 = 975.14 : x
  2. Step 2: Convert to fraction form
    1,176.07/1,772.18 = 975.14/x
  3. Step 3: Cross multiply
    1,176.07x = 1,772.18 × 975.14
  4. Step 4: Simplify right side
    1,176.07x = 1,728,123.61
  5. Step 5: Solve for x
    x = 1,728,123.61/1,176.07
  6. Step 6: Final answer
    x = 1,469.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.