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Finding the Fourth Proportional to 51,743.95, 71,372.95 and 42,297.55

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Solution

The fourth proportional to 51,743.95, 71,372.95 and 42,297.55 is: 58,343.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,743.95 : 71,372.95 = 42,297.55 : x
  2. Step 2: Convert to fraction form
    51,743.95/71,372.95 = 42,297.55/x
  3. Step 3: Cross multiply
    51,743.95x = 71,372.95 × 42,297.55
  4. Step 4: Simplify right side
    51,743.95x = 3,018,900,921.27
  5. Step 5: Solve for x
    x = 3,018,900,921.27/51,743.95
  6. Step 6: Final answer
    x = 58,343.07

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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.