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Finding the Fourth Proportional to 70,668.88, 97,525.62 and 38,840.20

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Solution

The fourth proportional to 70,668.88, 97,525.62 and 38,840.20 is: 53,600.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,668.88 : 97,525.62 = 38,840.20 : x
  2. Step 2: Convert to fraction form
    70,668.88/97,525.62 = 38,840.20/x
  3. Step 3: Cross multiply
    70,668.88x = 97,525.62 × 38,840.20
  4. Step 4: Simplify right side
    70,668.88x = 3,787,914,585.92
  5. Step 5: Solve for x
    x = 3,787,914,585.92/70,668.88
  6. Step 6: Final answer
    x = 53,600.89

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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.