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Finding the Fourth Proportional to 23,028.15, 34,542.15 and 9,871.99

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Solution

The fourth proportional to 23,028.15, 34,542.15 and 9,871.99 is: 14,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,028.15 : 34,542.15 = 9,871.99 : x
  2. Step 2: Convert to fraction form
    23,028.15/34,542.15 = 9,871.99/x
  3. Step 3: Cross multiply
    23,028.15x = 34,542.15 × 9,871.99
  4. Step 4: Simplify right side
    23,028.15x = 340,999,710.02
  5. Step 5: Solve for x
    x = 340,999,710.02/23,028.15
  6. Step 6: Final answer
    x = 14,807.95

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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.