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Finding the Fourth Proportional to 8,158.69, 11,258.95 and 4,432.69

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Solution

The fourth proportional to 8,158.69, 11,258.95 and 4,432.69 is: 6,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.69 : 11,258.95 = 4,432.69 : x
  2. Step 2: Convert to fraction form
    8,158.69/11,258.95 = 4,432.69/x
  3. Step 3: Cross multiply
    8,158.69x = 11,258.95 × 4,432.69
  4. Step 4: Simplify right side
    8,158.69x = 49,907,435.08
  5. Step 5: Solve for x
    x = 49,907,435.08/8,158.69
  6. Step 6: Final answer
    x = 6,117.09

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Half 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.