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Finding the Fourth Proportional to 72,182.94, 108,263.47 and 25,424.88

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Solution

The fourth proportional to 72,182.94, 108,263.47 and 25,424.88 is: 38,133.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,182.94 : 108,263.47 = 25,424.88 : x
  2. Step 2: Convert to fraction form
    72,182.94/108,263.47 = 25,424.88/x
  3. Step 3: Cross multiply
    72,182.94x = 108,263.47 × 25,424.88
  4. Step 4: Simplify right side
    72,182.94x = 2,752,585,733.13
  5. Step 5: Solve for x
    x = 2,752,585,733.13/72,182.94
  6. Step 6: Final answer
    x = 38,133.47

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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.