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Finding the Fourth Proportional to 21,894.04, 32,846.28 and 7,102.98

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Solution

The fourth proportional to 21,894.04, 32,846.28 and 7,102.98 is: 10,656.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.04 : 32,846.28 = 7,102.98 : x
  2. Step 2: Convert to fraction form
    21,894.04/32,846.28 = 7,102.98/x
  3. Step 3: Cross multiply
    21,894.04x = 32,846.28 × 7,102.98
  4. Step 4: Simplify right side
    21,894.04x = 233,306,469.91
  5. Step 5: Solve for x
    x = 233,306,469.91/21,894.04
  6. Step 6: Final answer
    x = 10,656.16

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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.