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Finding the Fourth Proportional to 17,955.80, 26,935.05 and 4,807.88

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Solution

The fourth proportional to 17,955.80, 26,935.05 and 4,807.88 is: 7,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.80 : 26,935.05 = 4,807.88 : x
  2. Step 2: Convert to fraction form
    17,955.80/26,935.05 = 4,807.88/x
  3. Step 3: Cross multiply
    17,955.80x = 26,935.05 × 4,807.88
  4. Step 4: Simplify right side
    17,955.80x = 129,500,488.19
  5. Step 5: Solve for x
    x = 129,500,488.19/17,955.80
  6. Step 6: Final answer
    x = 7,212.18

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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.