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Finding the Fourth Proportional to 30,086.46, 41,498.07 and 20,009.88

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Solution

The fourth proportional to 30,086.46, 41,498.07 and 20,009.88 is: 27,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.46 : 41,498.07 = 20,009.88 : x
  2. Step 2: Convert to fraction form
    30,086.46/41,498.07 = 20,009.88/x
  3. Step 3: Cross multiply
    30,086.46x = 41,498.07 × 20,009.88
  4. Step 4: Simplify right side
    30,086.46x = 830,371,400.93
  5. Step 5: Solve for x
    x = 830,371,400.93/30,086.46
  6. Step 6: Final answer
    x = 27,599.50

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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.