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Finding the Fourth Proportional to 61,990.42, 85,546.34 and 35,132.70

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Solution

The fourth proportional to 61,990.42, 85,546.34 and 35,132.70 is: 48,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990.42 : 85,546.34 = 35,132.70 : x
  2. Step 2: Convert to fraction form
    61,990.42/85,546.34 = 35,132.70/x
  3. Step 3: Cross multiply
    61,990.42x = 85,546.34 × 35,132.70
  4. Step 4: Simplify right side
    61,990.42x = 3,005,473,899.32
  5. Step 5: Solve for x
    x = 3,005,473,899.32/61,990.42
  6. Step 6: Final answer
    x = 48,482.88

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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.