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Finding the Fourth Proportional to 67,390.84, 92,970.75 and 49,454.74

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Solution

The fourth proportional to 67,390.84, 92,970.75 and 49,454.74 is: 68,226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,390.84 : 92,970.75 = 49,454.74 : x
  2. Step 2: Convert to fraction form
    67,390.84/92,970.75 = 49,454.74/x
  3. Step 3: Cross multiply
    67,390.84x = 92,970.75 × 49,454.74
  4. Step 4: Simplify right side
    67,390.84x = 4,597,844,268.86
  5. Step 5: Solve for x
    x = 4,597,844,268.86/67,390.84
  6. Step 6: Final answer
    x = 68,226.55

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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.