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Finding the Fourth Proportional to 21,704.98, 32,549.19 and 7,662.39

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Solution

The fourth proportional to 21,704.98, 32,549.19 and 7,662.39 is: 11,490.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.98 : 32,549.19 = 7,662.39 : x
  2. Step 2: Convert to fraction form
    21,704.98/32,549.19 = 7,662.39/x
  3. Step 3: Cross multiply
    21,704.98x = 32,549.19 × 7,662.39
  4. Step 4: Simplify right side
    21,704.98x = 249,404,587.96
  5. Step 5: Solve for x
    x = 249,404,587.96/21,704.98
  6. Step 6: Final answer
    x = 11,490.66

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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.