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Finding the Fourth Proportional to 8,632.83, 12,949.25 and 5,710.45

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Solution

The fourth proportional to 8,632.83, 12,949.25 and 5,710.45 is: 8,565.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.83 : 12,949.25 = 5,710.45 : x
  2. Step 2: Convert to fraction form
    8,632.83/12,949.25 = 5,710.45/x
  3. Step 3: Cross multiply
    8,632.83x = 12,949.25 × 5,710.45
  4. Step 4: Simplify right side
    8,632.83x = 73,946,062.76
  5. Step 5: Solve for x
    x = 73,946,062.76/8,632.83
  6. Step 6: Final answer
    x = 8,565.68

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Double scale
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Similar ratio
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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.