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Finding the Fourth Proportional to 15,969.70, 24,008.62 and 12,871.46

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Solution

The fourth proportional to 15,969.70, 24,008.62 and 12,871.46 is: 19,350.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,969.70 : 24,008.62 = 12,871.46 : x
  2. Step 2: Convert to fraction form
    15,969.70/24,008.62 = 12,871.46/x
  3. Step 3: Cross multiply
    15,969.70x = 24,008.62 × 12,871.46
  4. Step 4: Simplify right side
    15,969.70x = 309,025,991.99
  5. Step 5: Solve for x
    x = 309,025,991.99/15,969.70
  6. Step 6: Final answer
    x = 19,350.77

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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.