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Finding the Fourth Proportional to 42,087.90, 63,081.90 and 22,356.30

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Solution

The fourth proportional to 42,087.90, 63,081.90 and 22,356.30 is: 33,507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,087.90 : 63,081.90 = 22,356.30 : x
  2. Step 2: Convert to fraction form
    42,087.90/63,081.90 = 22,356.30/x
  3. Step 3: Cross multiply
    42,087.90x = 63,081.90 × 22,356.30
  4. Step 4: Simplify right side
    42,087.90x = 1,410,277,880.97
  5. Step 5: Solve for x
    x = 1,410,277,880.97/42,087.90
  6. Step 6: Final answer
    x = 33,507.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.