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Finding the Fourth Proportional to 17,607.71, 26,415.91 and 5,127.84

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Solution

The fourth proportional to 17,607.71, 26,415.91 and 5,127.84 is: 7,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,607.71 : 26,415.91 = 5,127.84 : x
  2. Step 2: Convert to fraction form
    17,607.71/26,415.91 = 5,127.84/x
  3. Step 3: Cross multiply
    17,607.71x = 26,415.91 × 5,127.84
  4. Step 4: Simplify right side
    17,607.71x = 135,456,547.11
  5. Step 5: Solve for x
    x = 135,456,547.11/17,607.71
  6. Step 6: Final answer
    x = 7,693.02

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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.