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Finding the Fourth Proportional to 23,874.15, 32,955.15 and 20,503.42

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Solution

The fourth proportional to 23,874.15, 32,955.15 and 20,503.42 is: 28,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,874.15 : 32,955.15 = 20,503.42 : x
  2. Step 2: Convert to fraction form
    23,874.15/32,955.15 = 20,503.42/x
  3. Step 3: Cross multiply
    23,874.15x = 32,955.15 × 20,503.42
  4. Step 4: Simplify right side
    23,874.15x = 675,693,281.61
  5. Step 5: Solve for x
    x = 675,693,281.61/23,874.15
  6. Step 6: Final answer
    x = 28,302.30

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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.