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Finding the Fourth Proportional to 52,879.71, 72,973.30 and 30,218.44

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Solution

The fourth proportional to 52,879.71, 72,973.30 and 30,218.44 is: 41,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,879.71 : 72,973.30 = 30,218.44 : x
  2. Step 2: Convert to fraction form
    52,879.71/72,973.30 = 30,218.44/x
  3. Step 3: Cross multiply
    52,879.71x = 72,973.30 × 30,218.44
  4. Step 4: Simplify right side
    52,879.71x = 2,205,139,287.65
  5. Step 5: Solve for x
    x = 2,205,139,287.65/52,879.71
  6. Step 6: Final answer
    x = 41,701.05

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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.