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Finding the Fourth Proportional to 21,367.70, 32,044.71 and 7,133.12

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Solution

The fourth proportional to 21,367.70, 32,044.71 and 7,133.12 is: 10,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.70 : 32,044.71 = 7,133.12 : x
  2. Step 2: Convert to fraction form
    21,367.70/32,044.71 = 7,133.12/x
  3. Step 3: Cross multiply
    21,367.70x = 32,044.71 × 7,133.12
  4. Step 4: Simplify right side
    21,367.70x = 228,578,761.80
  5. Step 5: Solve for x
    x = 228,578,761.80/21,367.70
  6. Step 6: Final answer
    x = 10,697.40

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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.