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Finding the Fourth Proportional to 21,655.78, 32,484.63 and 6,073.06

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Solution

The fourth proportional to 21,655.78, 32,484.63 and 6,073.06 is: 9,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.78 : 32,484.63 = 6,073.06 : x
  2. Step 2: Convert to fraction form
    21,655.78/32,484.63 = 6,073.06/x
  3. Step 3: Cross multiply
    21,655.78x = 32,484.63 × 6,073.06
  4. Step 4: Simplify right side
    21,655.78x = 197,281,107.07
  5. Step 5: Solve for x
    x = 197,281,107.07/21,655.78
  6. Step 6: Final answer
    x = 9,109.86

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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.