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Finding the Fourth Proportional to 1,106.92, 1,657.50 and 962.92

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Solution

The fourth proportional to 1,106.92, 1,657.50 and 962.92 is: 1,441.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106.92 : 1,657.50 = 962.92 : x
  2. Step 2: Convert to fraction form
    1,106.92/1,657.50 = 962.92/x
  3. Step 3: Cross multiply
    1,106.92x = 1,657.50 × 962.92
  4. Step 4: Simplify right side
    1,106.92x = 1,596,039.90
  5. Step 5: Solve for x
    x = 1,596,039.90/1,106.92
  6. Step 6: Final answer
    x = 1,441.87

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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.