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Finding the Fourth Proportional to 70,842.74, 97,759.20 and 40,626.62

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Solution

The fourth proportional to 70,842.74, 97,759.20 and 40,626.62 is: 56,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,842.74 : 97,759.20 = 40,626.62 : x
  2. Step 2: Convert to fraction form
    70,842.74/97,759.20 = 40,626.62/x
  3. Step 3: Cross multiply
    70,842.74x = 97,759.20 × 40,626.62
  4. Step 4: Simplify right side
    70,842.74x = 3,971,625,869.90
  5. Step 5: Solve for x
    x = 3,971,625,869.90/70,842.74
  6. Step 6: Final answer
    x = 56,062.57

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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.