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Finding the Fourth Proportional to 9,008.40, 13,512.60 and 4,400.40

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Solution

The fourth proportional to 9,008.40, 13,512.60 and 4,400.40 is: 6,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,008.40 : 13,512.60 = 4,400.40 : x
  2. Step 2: Convert to fraction form
    9,008.40/13,512.60 = 4,400.40/x
  3. Step 3: Cross multiply
    9,008.40x = 13,512.60 × 4,400.40
  4. Step 4: Simplify right side
    9,008.40x = 59,460,845.04
  5. Step 5: Solve for x
    x = 59,460,845.04/9,008.40
  6. Step 6: Final answer
    x = 6,600.60

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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.