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Finding the Fourth Proportional to 16,842.81, 25,256.90 and 8,943.60

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Solution

The fourth proportional to 16,842.81, 25,256.90 and 8,943.60 is: 13,411.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,842.81 : 25,256.90 = 8,943.60 : x
  2. Step 2: Convert to fraction form
    16,842.81/25,256.90 = 8,943.60/x
  3. Step 3: Cross multiply
    16,842.81x = 25,256.90 × 8,943.60
  4. Step 4: Simplify right side
    16,842.81x = 225,887,610.84
  5. Step 5: Solve for x
    x = 225,887,610.84/16,842.81
  6. Step 6: Final answer
    x = 13,411.52

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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.