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Finding the Fourth Proportional to 10,898.70, 15,044.79 and 7,366.69

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Solution

The fourth proportional to 10,898.70, 15,044.79 and 7,366.69 is: 10,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,898.70 : 15,044.79 = 7,366.69 : x
  2. Step 2: Convert to fraction form
    10,898.70/15,044.79 = 7,366.69/x
  3. Step 3: Cross multiply
    10,898.70x = 15,044.79 × 7,366.69
  4. Step 4: Simplify right side
    10,898.70x = 110,830,304.05
  5. Step 5: Solve for x
    x = 110,830,304.05/10,898.70
  6. Step 6: Final answer
    x = 10,169.13

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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.