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Finding the Fourth Proportional to 70,248.69, 96,944.63 and 38,419.65

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Solution

The fourth proportional to 70,248.69, 96,944.63 and 38,419.65 is: 53,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,248.69 : 96,944.63 = 38,419.65 : x
  2. Step 2: Convert to fraction form
    70,248.69/96,944.63 = 38,419.65/x
  3. Step 3: Cross multiply
    70,248.69x = 96,944.63 × 38,419.65
  4. Step 4: Simplify right side
    70,248.69x = 3,724,578,561.88
  5. Step 5: Solve for x
    x = 3,724,578,561.88/70,248.69
  6. Step 6: Final answer
    x = 53,019.90

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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.