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Finding the Fourth Proportional to 14,692.40, 22,013.40 and 6,885.20

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Solution

The fourth proportional to 14,692.40, 22,013.40 and 6,885.20 is: 10,315.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,692.40 : 22,013.40 = 6,885.20 : x
  2. Step 2: Convert to fraction form
    14,692.40/22,013.40 = 6,885.20/x
  3. Step 3: Cross multiply
    14,692.40x = 22,013.40 × 6,885.20
  4. Step 4: Simplify right side
    14,692.40x = 151,566,661.68
  5. Step 5: Solve for x
    x = 151,566,661.68/14,692.40
  6. Step 6: Final answer
    x = 10,315.99

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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.