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Finding the Fourth Proportional to 72,426.76, 99,951.84 and 40,595.44

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Solution

The fourth proportional to 72,426.76, 99,951.84 and 40,595.44 is: 56,023.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,426.76 : 99,951.84 = 40,595.44 : x
  2. Step 2: Convert to fraction form
    72,426.76/99,951.84 = 40,595.44/x
  3. Step 3: Cross multiply
    72,426.76x = 99,951.84 × 40,595.44
  4. Step 4: Simplify right side
    72,426.76x = 4,057,588,923.61
  5. Step 5: Solve for x
    x = 4,057,588,923.61/72,426.76
  6. Step 6: Final answer
    x = 56,023.34

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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.