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Finding the Fourth Proportional to 91,698.58, 126,599.25 and 59,920.66

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Solution

The fourth proportional to 91,698.58, 126,599.25 and 59,920.66 is: 82,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,698.58 : 126,599.25 = 59,920.66 : x
  2. Step 2: Convert to fraction form
    91,698.58/126,599.25 = 59,920.66/x
  3. Step 3: Cross multiply
    91,698.58x = 126,599.25 × 59,920.66
  4. Step 4: Simplify right side
    91,698.58x = 7,585,910,615.51
  5. Step 5: Solve for x
    x = 7,585,910,615.51/91,698.58
  6. Step 6: Final answer
    x = 82,726.59

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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.