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Finding the Fourth Proportional to 7,649.76, 10,555.06 and 5,001.06

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Solution

The fourth proportional to 7,649.76, 10,555.06 and 5,001.06 is: 6,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.76 : 10,555.06 = 5,001.06 : x
  2. Step 2: Convert to fraction form
    7,649.76/10,555.06 = 5,001.06/x
  3. Step 3: Cross multiply
    7,649.76x = 10,555.06 × 5,001.06
  4. Step 4: Simplify right side
    7,649.76x = 52,786,488.36
  5. Step 5: Solve for x
    x = 52,786,488.36/7,649.76
  6. Step 6: Final answer
    x = 6,900.41

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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.