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Finding the Fourth Proportional to 70,154.34, 96,815.12 and 38,325.29

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Solution

The fourth proportional to 70,154.34, 96,815.12 and 38,325.29 is: 52,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,154.34 : 96,815.12 = 38,325.29 : x
  2. Step 2: Convert to fraction form
    70,154.34/96,815.12 = 38,325.29/x
  3. Step 3: Cross multiply
    70,154.34x = 96,815.12 × 38,325.29
  4. Step 4: Simplify right side
    70,154.34x = 3,710,467,550.38
  5. Step 5: Solve for x
    x = 3,710,467,550.38/70,154.34
  6. Step 6: Final answer
    x = 52,890.06

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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.