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Finding the Fourth Proportional to 70,668.16, 97,520.94 and 38,836.38

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Solution

The fourth proportional to 70,668.16, 97,520.94 and 38,836.38 is: 53,593.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,668.16 : 97,520.94 = 38,836.38 : x
  2. Step 2: Convert to fraction form
    70,668.16/97,520.94 = 38,836.38/x
  3. Step 3: Cross multiply
    70,668.16x = 97,520.94 × 38,836.38
  4. Step 4: Simplify right side
    70,668.16x = 3,787,360,283.80
  5. Step 5: Solve for x
    x = 3,787,360,283.80/70,668.16
  6. Step 6: Final answer
    x = 53,593.59

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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.