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Finding the Fourth Proportional to 9,993.60, 15,008.16 and 9,483.12

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Solution

The fourth proportional to 9,993.60, 15,008.16 and 9,483.12 is: 14,241.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.60 : 15,008.16 = 9,483.12 : x
  2. Step 2: Convert to fraction form
    9,993.60/15,008.16 = 9,483.12/x
  3. Step 3: Cross multiply
    9,993.60x = 15,008.16 × 9,483.12
  4. Step 4: Simplify right side
    9,993.60x = 142,324,182.26
  5. Step 5: Solve for x
    x = 142,324,182.26/9,993.60
  6. Step 6: Final answer
    x = 14,241.53

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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.