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Finding the Fourth Proportional to 72,656.19, 108,976.19 and 25,263.09

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Solution

The fourth proportional to 72,656.19, 108,976.19 and 25,263.09 is: 37,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,656.19 : 108,976.19 = 25,263.09 : x
  2. Step 2: Convert to fraction form
    72,656.19/108,976.19 = 25,263.09/x
  3. Step 3: Cross multiply
    72,656.19x = 108,976.19 × 25,263.09
  4. Step 4: Simplify right side
    72,656.19x = 2,753,075,169.51
  5. Step 5: Solve for x
    x = 2,753,075,169.51/72,656.19
  6. Step 6: Final answer
    x = 37,891.82

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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.