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Finding the Fourth Proportional to 21,363.77, 32,017.77 and 15,460.54

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Solution

The fourth proportional to 21,363.77, 32,017.77 and 15,460.54 is: 23,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,363.77 : 32,017.77 = 15,460.54 : x
  2. Step 2: Convert to fraction form
    21,363.77/32,017.77 = 15,460.54/x
  3. Step 3: Cross multiply
    21,363.77x = 32,017.77 × 15,460.54
  4. Step 4: Simplify right side
    21,363.77x = 495,011,933.75
  5. Step 5: Solve for x
    x = 495,011,933.75/21,363.77
  6. Step 6: Final answer
    x = 23,170.62

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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.