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Finding the Fourth Proportional to 14,692.99, 20,273.47 and 8,726.53

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Solution

The fourth proportional to 14,692.99, 20,273.47 and 8,726.53 is: 12,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,692.99 : 20,273.47 = 8,726.53 : x
  2. Step 2: Convert to fraction form
    14,692.99/20,273.47 = 8,726.53/x
  3. Step 3: Cross multiply
    14,692.99x = 20,273.47 × 8,726.53
  4. Step 4: Simplify right side
    14,692.99x = 176,917,044.16
  5. Step 5: Solve for x
    x = 176,917,044.16/14,692.99
  6. Step 6: Final answer
    x = 12,040.92

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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.