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Finding the Fourth Proportional to 23,679.78, 32,675.79 and 13,068.75

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Solution

The fourth proportional to 23,679.78, 32,675.79 and 13,068.75 is: 18,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,679.78 : 32,675.79 = 13,068.75 : x
  2. Step 2: Convert to fraction form
    23,679.78/32,675.79 = 13,068.75/x
  3. Step 3: Cross multiply
    23,679.78x = 32,675.79 × 13,068.75
  4. Step 4: Simplify right side
    23,679.78x = 427,031,730.56
  5. Step 5: Solve for x
    x = 427,031,730.56/23,679.78
  6. Step 6: Final answer
    x = 18,033.60

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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.