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Finding the Fourth Proportional to 7,505.88, 10,358.01 and 4,149.06

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Solution

The fourth proportional to 7,505.88, 10,358.01 and 4,149.06 is: 5,725.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,505.88 : 10,358.01 = 4,149.06 : x
  2. Step 2: Convert to fraction form
    7,505.88/10,358.01 = 4,149.06/x
  3. Step 3: Cross multiply
    7,505.88x = 10,358.01 × 4,149.06
  4. Step 4: Simplify right side
    7,505.88x = 42,976,004.97
  5. Step 5: Solve for x
    x = 42,976,004.97/7,505.88
  6. Step 6: Final answer
    x = 5,725.65

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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.