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Finding the Fourth Proportional to 7,151.92, 9,862.54 and 4,355.68

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Solution

The fourth proportional to 7,151.92, 9,862.54 and 4,355.68 is: 6,006.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.92 : 9,862.54 = 4,355.68 : x
  2. Step 2: Convert to fraction form
    7,151.92/9,862.54 = 4,355.68/x
  3. Step 3: Cross multiply
    7,151.92x = 9,862.54 × 4,355.68
  4. Step 4: Simplify right side
    7,151.92x = 42,958,068.23
  5. Step 5: Solve for x
    x = 42,958,068.23/7,151.92
  6. Step 6: Final answer
    x = 6,006.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.