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Finding the Fourth Proportional to 9,149.95, 13,715.20 and 3,602.53

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Solution

The fourth proportional to 9,149.95, 13,715.20 and 3,602.53 is: 5,399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.95 : 13,715.20 = 3,602.53 : x
  2. Step 2: Convert to fraction form
    9,149.95/13,715.20 = 3,602.53/x
  3. Step 3: Cross multiply
    9,149.95x = 13,715.20 × 3,602.53
  4. Step 4: Simplify right side
    9,149.95x = 49,409,353.82
  5. Step 5: Solve for x
    x = 49,409,353.82/9,149.95
  6. Step 6: Final answer
    x = 5,399.96

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1.5x scale

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.