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Finding the Fourth Proportional to 8,707.47, 13,048.47 and 5,410.59

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Solution

The fourth proportional to 8,707.47, 13,048.47 and 5,410.59 is: 8,107.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.47 : 13,048.47 = 5,410.59 : x
  2. Step 2: Convert to fraction form
    8,707.47/13,048.47 = 5,410.59/x
  3. Step 3: Cross multiply
    8,707.47x = 13,048.47 × 5,410.59
  4. Step 4: Simplify right side
    8,707.47x = 70,599,921.30
  5. Step 5: Solve for x
    x = 70,599,921.30/8,707.47
  6. Step 6: Final answer
    x = 8,107.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.