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Finding the Fourth Proportional to 10,898.40, 16,336.80 and 5,044.80

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Solution

The fourth proportional to 10,898.40, 16,336.80 and 5,044.80 is: 7,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,898.40 : 16,336.80 = 5,044.80 : x
  2. Step 2: Convert to fraction form
    10,898.40/16,336.80 = 5,044.80/x
  3. Step 3: Cross multiply
    10,898.40x = 16,336.80 × 5,044.80
  4. Step 4: Simplify right side
    10,898.40x = 82,415,888.64
  5. Step 5: Solve for x
    x = 82,415,888.64/10,898.40
  6. Step 6: Final answer
    x = 7,562.20

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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.