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Finding the Fourth Proportional to 72,860.98, 100,545.44 and 40,594.84

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Solution

The fourth proportional to 72,860.98, 100,545.44 and 40,594.84 is: 56,019.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,860.98 : 100,545.44 = 40,594.84 : x
  2. Step 2: Convert to fraction form
    72,860.98/100,545.44 = 40,594.84/x
  3. Step 3: Cross multiply
    72,860.98x = 100,545.44 × 40,594.84
  4. Step 4: Simplify right side
    72,860.98x = 4,081,626,049.53
  5. Step 5: Solve for x
    x = 4,081,626,049.53/72,860.98
  6. Step 6: Final answer
    x = 56,019.37

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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.