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Finding the Fourth Proportional to 70,282.33, 96,987.95 and 38,451.49

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Solution

The fourth proportional to 70,282.33, 96,987.95 and 38,451.49 is: 53,062.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,282.33 : 96,987.95 = 38,451.49 : x
  2. Step 2: Convert to fraction form
    70,282.33/96,987.95 = 38,451.49/x
  3. Step 3: Cross multiply
    70,282.33x = 96,987.95 × 38,451.49
  4. Step 4: Simplify right side
    70,282.33x = 3,729,330,997.29
  5. Step 5: Solve for x
    x = 3,729,330,997.29/70,282.33
  6. Step 6: Final answer
    x = 53,062.14

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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.