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Finding the Fourth Proportional to 70,540.58, 97,348.80 and 38,710.62

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Solution

The fourth proportional to 70,540.58, 97,348.80 and 38,710.62 is: 53,422.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,540.58 : 97,348.80 = 38,710.62 : x
  2. Step 2: Convert to fraction form
    70,540.58/97,348.80 = 38,710.62/x
  3. Step 3: Cross multiply
    70,540.58x = 97,348.80 × 38,710.62
  4. Step 4: Simplify right side
    70,540.58x = 3,768,432,404.26
  5. Step 5: Solve for x
    x = 3,768,432,404.26/70,540.58
  6. Step 6: Final answer
    x = 53,422.19

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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.