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Finding the Fourth Proportional to 22,129.59, 30,539.58 and 12,058.31

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Solution

The fourth proportional to 22,129.59, 30,539.58 and 12,058.31 is: 16,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.59 : 30,539.58 = 12,058.31 : x
  2. Step 2: Convert to fraction form
    22,129.59/30,539.58 = 12,058.31/x
  3. Step 3: Cross multiply
    22,129.59x = 30,539.58 × 12,058.31
  4. Step 4: Simplify right side
    22,129.59x = 368,255,570.21
  5. Step 5: Solve for x
    x = 368,255,570.21/22,129.59
  6. Step 6: Final answer
    x = 16,640.87

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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.