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Finding the Fourth Proportional to 17,696.86, 26,526.66 and 8,913.32

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Solution

The fourth proportional to 17,696.86, 26,526.66 and 8,913.32 is: 13,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,696.86 : 26,526.66 = 8,913.32 : x
  2. Step 2: Convert to fraction form
    17,696.86/26,526.66 = 8,913.32/x
  3. Step 3: Cross multiply
    17,696.86x = 26,526.66 × 8,913.32
  4. Step 4: Simplify right side
    17,696.86x = 236,440,609.11
  5. Step 5: Solve for x
    x = 236,440,609.11/17,696.86
  6. Step 6: Final answer
    x = 13,360.60

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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.