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Finding the Fourth Proportional to 50,866.47, 70,192.87 and 28,204.11

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Solution

The fourth proportional to 50,866.47, 70,192.87 and 28,204.11 is: 38,920.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,866.47 : 70,192.87 = 28,204.11 : x
  2. Step 2: Convert to fraction form
    50,866.47/70,192.87 = 28,204.11/x
  3. Step 3: Cross multiply
    50,866.47x = 70,192.87 × 28,204.11
  4. Step 4: Simplify right side
    50,866.47x = 1,979,727,356.19
  5. Step 5: Solve for x
    x = 1,979,727,356.19/50,866.47
  6. Step 6: Final answer
    x = 38,920.09

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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.