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Finding the Fourth Proportional to 50,979.74, 70,363.28 and 28,326.51

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Solution

The fourth proportional to 50,979.74, 70,363.28 and 28,326.51 is: 39,096.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,979.74 : 70,363.28 = 28,326.51 : x
  2. Step 2: Convert to fraction form
    50,979.74/70,363.28 = 28,326.51/x
  3. Step 3: Cross multiply
    50,979.74x = 70,363.28 × 28,326.51
  4. Step 4: Simplify right side
    50,979.74x = 1,993,146,154.55
  5. Step 5: Solve for x
    x = 1,993,146,154.55/50,979.74
  6. Step 6: Final answer
    x = 39,096.83

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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.