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Finding the Fourth Proportional to 8,965.54, 13,448.99 and 2,391.58

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Solution

The fourth proportional to 8,965.54, 13,448.99 and 2,391.58 is: 3,587.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.54 : 13,448.99 = 2,391.58 : x
  2. Step 2: Convert to fraction form
    8,965.54/13,448.99 = 2,391.58/x
  3. Step 3: Cross multiply
    8,965.54x = 13,448.99 × 2,391.58
  4. Step 4: Simplify right side
    8,965.54x = 32,164,335.50
  5. Step 5: Solve for x
    x = 32,164,335.50/8,965.54
  6. Step 6: Final answer
    x = 3,587.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.