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Finding the Fourth Proportional to 17,856.84, 26,784.90 and 4,710.36

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Solution

The fourth proportional to 17,856.84, 26,784.90 and 4,710.36 is: 7,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,856.84 : 26,784.90 = 4,710.36 : x
  2. Step 2: Convert to fraction form
    17,856.84/26,784.90 = 4,710.36/x
  3. Step 3: Cross multiply
    17,856.84x = 26,784.90 × 4,710.36
  4. Step 4: Simplify right side
    17,856.84x = 126,166,521.56
  5. Step 5: Solve for x
    x = 126,166,521.56/17,856.84
  6. Step 6: Final answer
    x = 7,065.45

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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.