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Finding the Fourth Proportional to 30,340.74, 41,868.18 and 19,009.92

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Solution

The fourth proportional to 30,340.74, 41,868.18 and 19,009.92 is: 26,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.74 : 41,868.18 = 19,009.92 : x
  2. Step 2: Convert to fraction form
    30,340.74/41,868.18 = 19,009.92/x
  3. Step 3: Cross multiply
    30,340.74x = 41,868.18 × 19,009.92
  4. Step 4: Simplify right side
    30,340.74x = 795,910,752.35
  5. Step 5: Solve for x
    x = 795,910,752.35/30,340.74
  6. Step 6: Final answer
    x = 26,232.41

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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.