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Finding the Fourth Proportional to 9,132.84, 12,609.62 and 7,004.68

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Solution

The fourth proportional to 9,132.84, 12,609.62 and 7,004.68 is: 9,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,132.84 : 12,609.62 = 7,004.68 : x
  2. Step 2: Convert to fraction form
    9,132.84/12,609.62 = 7,004.68/x
  3. Step 3: Cross multiply
    9,132.84x = 12,609.62 × 7,004.68
  4. Step 4: Simplify right side
    9,132.84x = 88,326,353.02
  5. Step 5: Solve for x
    x = 88,326,353.02/9,132.84
  6. Step 6: Final answer
    x = 9,671.29

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.