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Finding the Fourth Proportional to 68,058.48, 102,065.04 and 28,608.24

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Solution

The fourth proportional to 68,058.48, 102,065.04 and 28,608.24 is: 42,902.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,058.48 : 102,065.04 = 28,608.24 : x
  2. Step 2: Convert to fraction form
    68,058.48/102,065.04 = 28,608.24/x
  3. Step 3: Cross multiply
    68,058.48x = 102,065.04 × 28,608.24
  4. Step 4: Simplify right side
    68,058.48x = 2,919,901,159.93
  5. Step 5: Solve for x
    x = 2,919,901,159.93/68,058.48
  6. Step 6: Final answer
    x = 42,902.83

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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.