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Finding the Fourth Proportional to 9,740.40, 14,632.20 and 9,481.20

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Solution

The fourth proportional to 9,740.40, 14,632.20 and 9,481.20 is: 14,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,740.40 : 14,632.20 = 9,481.20 : x
  2. Step 2: Convert to fraction form
    9,740.40/14,632.20 = 9,481.20/x
  3. Step 3: Cross multiply
    9,740.40x = 14,632.20 × 9,481.20
  4. Step 4: Simplify right side
    9,740.40x = 138,730,814.64
  5. Step 5: Solve for x
    x = 138,730,814.64/9,740.40
  6. Step 6: Final answer
    x = 14,242.83

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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.