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Finding the Fourth Proportional to 9,008.10, 13,512.15 and 8,705.70

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Solution

The fourth proportional to 9,008.10, 13,512.15 and 8,705.70 is: 13,058.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,008.10 : 13,512.15 = 8,705.70 : x
  2. Step 2: Convert to fraction form
    9,008.10/13,512.15 = 8,705.70/x
  3. Step 3: Cross multiply
    9,008.10x = 13,512.15 × 8,705.70
  4. Step 4: Simplify right side
    9,008.10x = 117,632,724.26
  5. Step 5: Solve for x
    x = 117,632,724.26/9,008.10
  6. Step 6: Final answer
    x = 13,058.55

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Half scale
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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.