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Finding the Fourth Proportional to 67,490.76, 93,135.74 and 36,862.84

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Solution

The fourth proportional to 67,490.76, 93,135.74 and 36,862.84 is: 50,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,490.76 : 93,135.74 = 36,862.84 : x
  2. Step 2: Convert to fraction form
    67,490.76/93,135.74 = 36,862.84/x
  3. Step 3: Cross multiply
    67,490.76x = 93,135.74 × 36,862.84
  4. Step 4: Simplify right side
    67,490.76x = 3,433,247,881.90
  5. Step 5: Solve for x
    x = 3,433,247,881.90/67,490.76
  6. Step 6: Final answer
    x = 50,869.90

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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.