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Finding the Fourth Proportional to 8,474.13, 12,707.52 and 4,524.51

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Solution

The fourth proportional to 8,474.13, 12,707.52 and 4,524.51 is: 6,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.13 : 12,707.52 = 4,524.51 : x
  2. Step 2: Convert to fraction form
    8,474.13/12,707.52 = 4,524.51/x
  3. Step 3: Cross multiply
    8,474.13x = 12,707.52 × 4,524.51
  4. Step 4: Simplify right side
    8,474.13x = 57,495,301.32
  5. Step 5: Solve for x
    x = 57,495,301.32/8,474.13
  6. Step 6: Final answer
    x = 6,784.80

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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.