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Finding the Fourth Proportional to 17,925.86, 26,868.62 and 8,698.34

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Solution

The fourth proportional to 17,925.86, 26,868.62 and 8,698.34 is: 13,037.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,925.86 : 26,868.62 = 8,698.34 : x
  2. Step 2: Convert to fraction form
    17,925.86/26,868.62 = 8,698.34/x
  3. Step 3: Cross multiply
    17,925.86x = 26,868.62 × 8,698.34
  4. Step 4: Simplify right side
    17,925.86x = 233,712,392.09
  5. Step 5: Solve for x
    x = 233,712,392.09/17,925.86
  6. Step 6: Final answer
    x = 13,037.72

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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.