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Finding the Fourth Proportional to 70,549.96, 97,358.84 and 38,719.12

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Solution

The fourth proportional to 70,549.96, 97,358.84 and 38,719.12 is: 53,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,549.96 : 97,358.84 = 38,719.12 : x
  2. Step 2: Convert to fraction form
    70,549.96/97,358.84 = 38,719.12/x
  3. Step 3: Cross multiply
    70,549.96x = 97,358.84 × 38,719.12
  4. Step 4: Simplify right side
    70,549.96x = 3,769,648,609.02
  5. Step 5: Solve for x
    x = 3,769,648,609.02/70,549.96
  6. Step 6: Final answer
    x = 53,432.33

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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.