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Finding the Fourth Proportional to 32,290.44, 48,435.78 and 8,918.76

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Solution

The fourth proportional to 32,290.44, 48,435.78 and 8,918.76 is: 13,378.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,290.44 : 48,435.78 = 8,918.76 : x
  2. Step 2: Convert to fraction form
    32,290.44/48,435.78 = 8,918.76/x
  3. Step 3: Cross multiply
    32,290.44x = 48,435.78 × 8,918.76
  4. Step 4: Simplify right side
    32,290.44x = 431,987,097.23
  5. Step 5: Solve for x
    x = 431,987,097.23/32,290.44
  6. Step 6: Final answer
    x = 13,378.17

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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.