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Finding the Fourth Proportional to 70,583.57, 97,404.90 and 38,318.84

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Solution

The fourth proportional to 70,583.57, 97,404.90 and 38,318.84 is: 52,879.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,583.57 : 97,404.90 = 38,318.84 : x
  2. Step 2: Convert to fraction form
    70,583.57/97,404.90 = 38,318.84/x
  3. Step 3: Cross multiply
    70,583.57x = 97,404.90 × 38,318.84
  4. Step 4: Simplify right side
    70,583.57x = 3,732,442,778.32
  5. Step 5: Solve for x
    x = 3,732,442,778.32/70,583.57
  6. Step 6: Final answer
    x = 52,879.77

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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.