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Finding the Fourth Proportional to 22,661.90, 31,277.90 and 14,480.27

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Solution

The fourth proportional to 22,661.90, 31,277.90 and 14,480.27 is: 19,985.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.90 : 31,277.90 = 14,480.27 : x
  2. Step 2: Convert to fraction form
    22,661.90/31,277.90 = 14,480.27/x
  3. Step 3: Cross multiply
    22,661.90x = 31,277.90 × 14,480.27
  4. Step 4: Simplify right side
    22,661.90x = 452,912,364.63
  5. Step 5: Solve for x
    x = 452,912,364.63/22,661.90
  6. Step 6: Final answer
    x = 19,985.63

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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.