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Finding the Fourth Proportional to 22,393.97, 30,899.72 and 12,702.93

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Solution

The fourth proportional to 22,393.97, 30,899.72 and 12,702.93 is: 17,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,393.97 : 30,899.72 = 12,702.93 : x
  2. Step 2: Convert to fraction form
    22,393.97/30,899.72 = 12,702.93/x
  3. Step 3: Cross multiply
    22,393.97x = 30,899.72 × 12,702.93
  4. Step 4: Simplify right side
    22,393.97x = 392,516,916.66
  5. Step 5: Solve for x
    x = 392,516,916.66/22,393.97
  6. Step 6: Final answer
    x = 17,527.80

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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.