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Finding the Fourth Proportional to 21,407.46, 32,102.87 and 7,364.82

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Solution

The fourth proportional to 21,407.46, 32,102.87 and 7,364.82 is: 11,044.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.46 : 32,102.87 = 7,364.82 : x
  2. Step 2: Convert to fraction form
    21,407.46/32,102.87 = 7,364.82/x
  3. Step 3: Cross multiply
    21,407.46x = 32,102.87 × 7,364.82
  4. Step 4: Simplify right side
    21,407.46x = 236,431,859.03
  5. Step 5: Solve for x
    x = 236,431,859.03/21,407.46
  6. Step 6: Final answer
    x = 11,044.37

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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.