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Finding the Fourth Proportional to 67,362.21, 92,966.12 and 38,685.87

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Solution

The fourth proportional to 67,362.21, 92,966.12 and 38,685.87 is: 53,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,362.21 : 92,966.12 = 38,685.87 : x
  2. Step 2: Convert to fraction form
    67,362.21/92,966.12 = 38,685.87/x
  3. Step 3: Cross multiply
    67,362.21x = 92,966.12 × 38,685.87
  4. Step 4: Simplify right side
    67,362.21x = 3,596,475,039.30
  5. Step 5: Solve for x
    x = 3,596,475,039.30/67,362.21
  6. Step 6: Final answer
    x = 53,390.10

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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.