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Finding the Fourth Proportional to 67,777.68, 93,510.78 and 40,909.98

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Solution

The fourth proportional to 67,777.68, 93,510.78 and 40,909.98 is: 56,442.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,777.68 : 93,510.78 = 40,909.98 : x
  2. Step 2: Convert to fraction form
    67,777.68/93,510.78 = 40,909.98/x
  3. Step 3: Cross multiply
    67,777.68x = 93,510.78 × 40,909.98
  4. Step 4: Simplify right side
    67,777.68x = 3,825,524,139.58
  5. Step 5: Solve for x
    x = 3,825,524,139.58/67,777.68
  6. Step 6: Final answer
    x = 56,442.24

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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.