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Finding the Fourth Proportional to 21,658.62, 32,461.77 and 10,548.66

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Solution

The fourth proportional to 21,658.62, 32,461.77 and 10,548.66 is: 15,810.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,658.62 : 32,461.77 = 10,548.66 : x
  2. Step 2: Convert to fraction form
    21,658.62/32,461.77 = 10,548.66/x
  3. Step 3: Cross multiply
    21,658.62x = 32,461.77 × 10,548.66
  4. Step 4: Simplify right side
    21,658.62x = 342,428,174.73
  5. Step 5: Solve for x
    x = 342,428,174.73/21,658.62
  6. Step 6: Final answer
    x = 15,810.25

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1.5x scale

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.