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Finding the Fourth Proportional to 21,704.72, 32,503.98 and 19,601.11

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Solution

The fourth proportional to 21,704.72, 32,503.98 and 19,601.11 is: 29,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.72 : 32,503.98 = 19,601.11 : x
  2. Step 2: Convert to fraction form
    21,704.72/32,503.98 = 19,601.11/x
  3. Step 3: Cross multiply
    21,704.72x = 32,503.98 × 19,601.11
  4. Step 4: Simplify right side
    21,704.72x = 637,113,924.90
  5. Step 5: Solve for x
    x = 637,113,924.90/21,704.72
  6. Step 6: Final answer
    x = 29,353.70

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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.