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Finding the Fourth Proportional to 89,072.30, 133,569.30 and 26,728.22

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Solution

The fourth proportional to 89,072.30, 133,569.30 and 26,728.22 is: 40,080.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,072.30 : 133,569.30 = 26,728.22 : x
  2. Step 2: Convert to fraction form
    89,072.30/133,569.30 = 26,728.22/x
  3. Step 3: Cross multiply
    89,072.30x = 133,569.30 × 26,728.22
  4. Step 4: Simplify right side
    89,072.30x = 3,570,069,635.65
  5. Step 5: Solve for x
    x = 3,570,069,635.65/89,072.30
  6. Step 6: Final answer
    x = 40,080.58

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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.