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Finding the Fourth Proportional to 70,228.61, 96,914.81 and 38,397.17

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Solution

The fourth proportional to 70,228.61, 96,914.81 and 38,397.17 is: 52,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,228.61 : 96,914.81 = 38,397.17 : x
  2. Step 2: Convert to fraction form
    70,228.61/96,914.81 = 38,397.17/x
  3. Step 3: Cross multiply
    70,228.61x = 96,914.81 × 38,397.17
  4. Step 4: Simplify right side
    70,228.61x = 3,721,254,046.51
  5. Step 5: Solve for x
    x = 3,721,254,046.51/70,228.61
  6. Step 6: Final answer
    x = 52,987.73

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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.