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Finding the Fourth Proportional to 9,585.90, 14,378.85 and 9,132.30

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Solution

The fourth proportional to 9,585.90, 14,378.85 and 9,132.30 is: 13,698.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,585.90 : 14,378.85 = 9,132.30 : x
  2. Step 2: Convert to fraction form
    9,585.90/14,378.85 = 9,132.30/x
  3. Step 3: Cross multiply
    9,585.90x = 14,378.85 × 9,132.30
  4. Step 4: Simplify right side
    9,585.90x = 131,311,971.86
  5. Step 5: Solve for x
    x = 131,311,971.86/9,585.90
  6. Step 6: Final answer
    x = 13,698.45

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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.