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Finding the Fourth Proportional to 22,702.90, 31,329.90 and 12,632.31

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Solution

The fourth proportional to 22,702.90, 31,329.90 and 12,632.31 is: 17,432.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,702.90 : 31,329.90 = 12,632.31 : x
  2. Step 2: Convert to fraction form
    22,702.90/31,329.90 = 12,632.31/x
  3. Step 3: Cross multiply
    22,702.90x = 31,329.90 × 12,632.31
  4. Step 4: Simplify right side
    22,702.90x = 395,769,009.07
  5. Step 5: Solve for x
    x = 395,769,009.07/22,702.90
  6. Step 6: Final answer
    x = 17,432.53

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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.