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Finding the Fourth Proportional to 4,044.76, 5,565.06 and 3,928.12

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Solution

The fourth proportional to 4,044.76, 5,565.06 and 3,928.12 is: 5,404.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,044.76 : 5,565.06 = 3,928.12 : x
  2. Step 2: Convert to fraction form
    4,044.76/5,565.06 = 3,928.12/x
  3. Step 3: Cross multiply
    4,044.76x = 5,565.06 × 3,928.12
  4. Step 4: Simplify right side
    4,044.76x = 21,860,223.49
  5. Step 5: Solve for x
    x = 21,860,223.49/4,044.76
  6. Step 6: Final answer
    x = 5,404.58

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Half scale
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Double scale
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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.