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Finding the Fourth Proportional to 21,652.61, 32,466.51 and 6,655.83

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Solution

The fourth proportional to 21,652.61, 32,466.51 and 6,655.83 is: 9,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652.61 : 32,466.51 = 6,655.83 : x
  2. Step 2: Convert to fraction form
    21,652.61/32,466.51 = 6,655.83/x
  3. Step 3: Cross multiply
    21,652.61x = 32,466.51 × 6,655.83
  4. Step 4: Simplify right side
    21,652.61x = 216,091,571.25
  5. Step 5: Solve for x
    x = 216,091,571.25/21,652.61
  6. Step 6: Final answer
    x = 9,979.93

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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.