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Finding the Fourth Proportional to 29,580.40, 40,822.61 and 16,152.90

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Solution

The fourth proportional to 29,580.40, 40,822.61 and 16,152.90 is: 22,291.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,580.40 : 40,822.61 = 16,152.90 : x
  2. Step 2: Convert to fraction form
    29,580.40/40,822.61 = 16,152.90/x
  3. Step 3: Cross multiply
    29,580.40x = 40,822.61 × 16,152.90
  4. Step 4: Simplify right side
    29,580.40x = 659,403,456.30
  5. Step 5: Solve for x
    x = 659,403,456.30/29,580.40
  6. Step 6: Final answer
    x = 22,291.91

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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.