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Finding the Fourth Proportional to 21,818, 32,722.82 and 6,019.10

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Solution

The fourth proportional to 21,818, 32,722.82 and 6,019.10 is: 9,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,818 : 32,722.82 = 6,019.10 : x
  2. Step 2: Convert to fraction form
    21,818/32,722.82 = 6,019.10/x
  3. Step 3: Cross multiply
    21,818x = 32,722.82 × 6,019.10
  4. Step 4: Simplify right side
    21,818x = 196,961,925.86
  5. Step 5: Solve for x
    x = 196,961,925.86/21,818
  6. Step 6: Final answer
    x = 9,027.50

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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.