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Finding the Fourth Proportional to 22,028.94, 30,425.16 and 14,508.90

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Solution

The fourth proportional to 22,028.94, 30,425.16 and 14,508.90 is: 20,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,028.94 : 30,425.16 = 14,508.90 : x
  2. Step 2: Convert to fraction form
    22,028.94/30,425.16 = 14,508.90/x
  3. Step 3: Cross multiply
    22,028.94x = 30,425.16 × 14,508.90
  4. Step 4: Simplify right side
    22,028.94x = 441,435,603.92
  5. Step 5: Solve for x
    x = 441,435,603.92/22,028.94
  6. Step 6: Final answer
    x = 20,038.89

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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.