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Finding the Fourth Proportional to 29,699.87, 40,983.77 and 17,439.30

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Solution

The fourth proportional to 29,699.87, 40,983.77 and 17,439.30 is: 24,065.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,699.87 : 40,983.77 = 17,439.30 : x
  2. Step 2: Convert to fraction form
    29,699.87/40,983.77 = 17,439.30/x
  3. Step 3: Cross multiply
    29,699.87x = 40,983.77 × 17,439.30
  4. Step 4: Simplify right side
    29,699.87x = 714,728,303.76
  5. Step 5: Solve for x
    x = 714,728,303.76/29,699.87
  6. Step 6: Final answer
    x = 24,065.04

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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.