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Finding the Fourth Proportional to 70,617.96, 97,452.72 and 38,786.58

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Solution

The fourth proportional to 70,617.96, 97,452.72 and 38,786.58 is: 53,525.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,617.96 : 97,452.72 = 38,786.58 : x
  2. Step 2: Convert to fraction form
    70,617.96/97,452.72 = 38,786.58/x
  3. Step 3: Cross multiply
    70,617.96x = 97,452.72 × 38,786.58
  4. Step 4: Simplify right side
    70,617.96x = 3,779,857,720.50
  5. Step 5: Solve for x
    x = 3,779,857,720.50/70,617.96
  6. Step 6: Final answer
    x = 53,525.44

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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.