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Finding the Fourth Proportional to 8,935.15, 13,392.51 and 4,248.51

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Solution

The fourth proportional to 8,935.15, 13,392.51 and 4,248.51 is: 6,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.15 : 13,392.51 = 4,248.51 : x
  2. Step 2: Convert to fraction form
    8,935.15/13,392.51 = 4,248.51/x
  3. Step 3: Cross multiply
    8,935.15x = 13,392.51 × 4,248.51
  4. Step 4: Simplify right side
    8,935.15x = 56,898,212.66
  5. Step 5: Solve for x
    x = 56,898,212.66/8,935.15
  6. Step 6: Final answer
    x = 6,367.91

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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.