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Finding the Fourth Proportional to 10,937.79, 15,080.99 and 7,583.49

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Solution

The fourth proportional to 10,937.79, 15,080.99 and 7,583.49 is: 10,456.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,937.79 : 15,080.99 = 7,583.49 : x
  2. Step 2: Convert to fraction form
    10,937.79/15,080.99 = 7,583.49/x
  3. Step 3: Cross multiply
    10,937.79x = 15,080.99 × 7,583.49
  4. Step 4: Simplify right side
    10,937.79x = 114,366,498.94
  5. Step 5: Solve for x
    x = 114,366,498.94/10,937.79
  6. Step 6: Final answer
    x = 10,456.09

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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.