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Finding the Fourth Proportional to 70,575.42, 97,389.70 and 38,744.12

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Solution

The fourth proportional to 70,575.42, 97,389.70 and 38,744.12 is: 53,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,575.42 : 97,389.70 = 38,744.12 : x
  2. Step 2: Convert to fraction form
    70,575.42/97,389.70 = 38,744.12/x
  3. Step 3: Cross multiply
    70,575.42x = 97,389.70 × 38,744.12
  4. Step 4: Simplify right side
    70,575.42x = 3,773,278,223.56
  5. Step 5: Solve for x
    x = 3,773,278,223.56/70,575.42
  6. Step 6: Final answer
    x = 53,464.48

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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.