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Finding the Fourth Proportional to 70,228.48, 96,914.64 and 38,397.04

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Solution

The fourth proportional to 70,228.48, 96,914.64 and 38,397.04 is: 52,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,228.48 : 96,914.64 = 38,397.04 : x
  2. Step 2: Convert to fraction form
    70,228.48/96,914.64 = 38,397.04/x
  3. Step 3: Cross multiply
    70,228.48x = 96,914.64 × 38,397.04
  4. Step 4: Simplify right side
    70,228.48x = 3,721,235,308.67
  5. Step 5: Solve for x
    x = 3,721,235,308.67/70,228.48
  6. Step 6: Final answer
    x = 52,987.55

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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.