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Finding the Fourth Proportional to 70,693.56, 97,516.44 and 42,382.80

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Solution

The fourth proportional to 70,693.56, 97,516.44 and 42,382.80 is: 58,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,693.56 : 97,516.44 = 42,382.80 : x
  2. Step 2: Convert to fraction form
    70,693.56/97,516.44 = 42,382.80/x
  3. Step 3: Cross multiply
    70,693.56x = 97,516.44 × 42,382.80
  4. Step 4: Simplify right side
    70,693.56x = 4,133,019,773.23
  5. Step 5: Solve for x
    x = 4,133,019,773.23/70,693.56
  6. Step 6: Final answer
    x = 58,463.88

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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.