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Finding the Fourth Proportional to 29,809.76, 41,134.64 and 17,870.88

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Solution

The fourth proportional to 29,809.76, 41,134.64 and 17,870.88 is: 24,660.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,809.76 : 41,134.64 = 17,870.88 : x
  2. Step 2: Convert to fraction form
    29,809.76/41,134.64 = 17,870.88/x
  3. Step 3: Cross multiply
    29,809.76x = 41,134.64 × 17,870.88
  4. Step 4: Simplify right side
    29,809.76x = 735,112,215.28
  5. Step 5: Solve for x
    x = 735,112,215.28/29,809.76
  6. Step 6: Final answer
    x = 24,660.12

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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.