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Finding the Fourth Proportional to 7,707.33, 10,680.08 and 7,239.15

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Solution

The fourth proportional to 7,707.33, 10,680.08 and 7,239.15 is: 10,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.33 : 10,680.08 = 7,239.15 : x
  2. Step 2: Convert to fraction form
    7,707.33/10,680.08 = 7,239.15/x
  3. Step 3: Cross multiply
    7,707.33x = 10,680.08 × 7,239.15
  4. Step 4: Simplify right side
    7,707.33x = 77,314,664.94
  5. Step 5: Solve for x
    x = 77,314,664.94/7,707.33
  6. Step 6: Final answer
    x = 10,031.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.