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Finding the Fourth Proportional to 68,698.22, 94,787.15 and 40,000.23

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Solution

The fourth proportional to 68,698.22, 94,787.15 and 40,000.23 is: 55,190.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,698.22 : 94,787.15 = 40,000.23 : x
  2. Step 2: Convert to fraction form
    68,698.22/94,787.15 = 40,000.23/x
  3. Step 3: Cross multiply
    68,698.22x = 94,787.15 × 40,000.23
  4. Step 4: Simplify right side
    68,698.22x = 3,791,507,601.04
  5. Step 5: Solve for x
    x = 3,791,507,601.04/68,698.22
  6. Step 6: Final answer
    x = 55,190.77

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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.