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Finding the Fourth Proportional to 7,357.67, 10,155.74 and 4,375.61

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Solution

The fourth proportional to 7,357.67, 10,155.74 and 4,375.61 is: 6,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,357.67 : 10,155.74 = 4,375.61 : x
  2. Step 2: Convert to fraction form
    7,357.67/10,155.74 = 4,375.61/x
  3. Step 3: Cross multiply
    7,357.67x = 10,155.74 × 4,375.61
  4. Step 4: Simplify right side
    7,357.67x = 44,437,557.50
  5. Step 5: Solve for x
    x = 44,437,557.50/7,357.67
  6. Step 6: Final answer
    x = 6,039.62

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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.