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Finding the Fourth Proportional to 70,396.28, 97,146.88 and 38,566.32

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Solution

The fourth proportional to 70,396.28, 97,146.88 and 38,566.32 is: 53,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,396.28 : 97,146.88 = 38,566.32 : x
  2. Step 2: Convert to fraction form
    70,396.28/97,146.88 = 38,566.32/x
  3. Step 3: Cross multiply
    70,396.28x = 97,146.88 × 38,566.32
  4. Step 4: Simplify right side
    70,396.28x = 3,746,597,661.08
  5. Step 5: Solve for x
    x = 3,746,597,661.08/70,396.28
  6. Step 6: Final answer
    x = 53,221.53

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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.