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Finding the Fourth Proportional to 21,856.03, 32,772.50 and 7,063.10

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Solution

The fourth proportional to 21,856.03, 32,772.50 and 7,063.10 is: 10,590.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,856.03 : 32,772.50 = 7,063.10 : x
  2. Step 2: Convert to fraction form
    21,856.03/32,772.50 = 7,063.10/x
  3. Step 3: Cross multiply
    21,856.03x = 32,772.50 × 7,063.10
  4. Step 4: Simplify right side
    21,856.03x = 231,475,394.96
  5. Step 5: Solve for x
    x = 231,475,394.96/21,856.03
  6. Step 6: Final answer
    x = 10,590.92

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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.