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Finding the Fourth Proportional to 23,643.44, 32,627.55 and 12,888.44

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Solution

The fourth proportional to 23,643.44, 32,627.55 and 12,888.44 is: 17,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,643.44 : 32,627.55 = 12,888.44 : x
  2. Step 2: Convert to fraction form
    23,643.44/32,627.55 = 12,888.44/x
  3. Step 3: Cross multiply
    23,643.44x = 32,627.55 × 12,888.44
  4. Step 4: Simplify right side
    23,643.44x = 420,518,057.38
  5. Step 5: Solve for x
    x = 420,518,057.38/23,643.44
  6. Step 6: Final answer
    x = 17,785.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.