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Finding the Fourth Proportional to 61,993.74, 85,549.56 and 35,138.72

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Solution

The fourth proportional to 61,993.74, 85,549.56 and 35,138.72 is: 48,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,993.74 : 85,549.56 = 35,138.72 : x
  2. Step 2: Convert to fraction form
    61,993.74/85,549.56 = 35,138.72/x
  3. Step 3: Cross multiply
    61,993.74x = 85,549.56 × 35,138.72
  4. Step 4: Simplify right side
    61,993.74x = 3,006,102,034.96
  5. Step 5: Solve for x
    x = 3,006,102,034.96/61,993.74
  6. Step 6: Final answer
    x = 48,490.41

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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.