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Finding the Fourth Proportional to 7,182.41, 9,916.63 and 5,500.85

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Solution

The fourth proportional to 7,182.41, 9,916.63 and 5,500.85 is: 7,594.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.41 : 9,916.63 = 5,500.85 : x
  2. Step 2: Convert to fraction form
    7,182.41/9,916.63 = 5,500.85/x
  3. Step 3: Cross multiply
    7,182.41x = 9,916.63 × 5,500.85
  4. Step 4: Simplify right side
    7,182.41x = 54,549,830.80
  5. Step 5: Solve for x
    x = 54,549,830.80/7,182.41
  6. Step 6: Final answer
    x = 7,594.93

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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.