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Finding the Fourth Proportional to 70,624.64, 97,459.38 and 38,791.64

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Solution

The fourth proportional to 70,624.64, 97,459.38 and 38,791.64 is: 53,531.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,624.64 : 97,459.38 = 38,791.64 : x
  2. Step 2: Convert to fraction form
    70,624.64/97,459.38 = 38,791.64/x
  3. Step 3: Cross multiply
    70,624.64x = 97,459.38 × 38,791.64
  4. Step 4: Simplify right side
    70,624.64x = 3,780,608,696.29
  5. Step 5: Solve for x
    x = 3,780,608,696.29/70,624.64
  6. Step 6: Final answer
    x = 53,531.02

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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.