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Finding the Fourth Proportional to 23,167.76, 34,751.64 and 12,648.30

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Solution

The fourth proportional to 23,167.76, 34,751.64 and 12,648.30 is: 18,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,167.76 : 34,751.64 = 12,648.30 : x
  2. Step 2: Convert to fraction form
    23,167.76/34,751.64 = 12,648.30/x
  3. Step 3: Cross multiply
    23,167.76x = 34,751.64 × 12,648.30
  4. Step 4: Simplify right side
    23,167.76x = 439,549,168.21
  5. Step 5: Solve for x
    x = 439,549,168.21/23,167.76
  6. Step 6: Final answer
    x = 18,972.45

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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.