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Finding the Fourth Proportional to 71,275.66, 106,952.64 and 36,218.32

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Solution

The fourth proportional to 71,275.66, 106,952.64 and 36,218.32 is: 54,347.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,275.66 : 106,952.64 = 36,218.32 : x
  2. Step 2: Convert to fraction form
    71,275.66/106,952.64 = 36,218.32/x
  3. Step 3: Cross multiply
    71,275.66x = 106,952.64 × 36,218.32
  4. Step 4: Simplify right side
    71,275.66x = 3,873,644,940.36
  5. Step 5: Solve for x
    x = 3,873,644,940.36/71,275.66
  6. Step 6: Final answer
    x = 54,347.37

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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.