Home / 57,003.60-78,613.86-47,475.12

Finding the Fourth Proportional to 57,003.60, 78,613.86 and 47,475.12

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Solution

The fourth proportional to 57,003.60, 78,613.86 and 47,475.12 is: 65,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,003.60 : 78,613.86 = 47,475.12 : x
  2. Step 2: Convert to fraction form
    57,003.60/78,613.86 = 47,475.12/x
  3. Step 3: Cross multiply
    57,003.60x = 78,613.86 × 47,475.12
  4. Step 4: Simplify right side
    57,003.60x = 3,732,202,437.16
  5. Step 5: Solve for x
    x = 3,732,202,437.16/57,003.60
  6. Step 6: Final answer
    x = 65,473.10

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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.