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Finding the Fourth Proportional to 72,337.26, 99,827.19 and 40,512.63

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Solution

The fourth proportional to 72,337.26, 99,827.19 and 40,512.63 is: 55,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,337.26 : 99,827.19 = 40,512.63 : x
  2. Step 2: Convert to fraction form
    72,337.26/99,827.19 = 40,512.63/x
  3. Step 3: Cross multiply
    72,337.26x = 99,827.19 × 40,512.63
  4. Step 4: Simplify right side
    72,337.26x = 4,044,262,012.41
  5. Step 5: Solve for x
    x = 4,044,262,012.41/72,337.26
  6. Step 6: Final answer
    x = 55,908.42

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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.