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Finding the Fourth Proportional to 57,123.98, 85,685.98 and 15,570.98

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Solution

The fourth proportional to 57,123.98, 85,685.98 and 15,570.98 is: 23,356.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,123.98 : 85,685.98 = 15,570.98 : x
  2. Step 2: Convert to fraction form
    57,123.98/85,685.98 = 15,570.98/x
  3. Step 3: Cross multiply
    57,123.98x = 85,685.98 × 15,570.98
  4. Step 4: Simplify right side
    57,123.98x = 1,334,215,002.21
  5. Step 5: Solve for x
    x = 1,334,215,002.21/57,123.98
  6. Step 6: Final answer
    x = 23,356.48

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Similar ratio
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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.