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Finding the Fourth Proportional to 21,575.70, 32,361.03 and 5,782.10

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Solution

The fourth proportional to 21,575.70, 32,361.03 and 5,782.10 is: 8,672.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.70 : 32,361.03 = 5,782.10 : x
  2. Step 2: Convert to fraction form
    21,575.70/32,361.03 = 5,782.10/x
  3. Step 3: Cross multiply
    21,575.70x = 32,361.03 × 5,782.10
  4. Step 4: Simplify right side
    21,575.70x = 187,114,549.76
  5. Step 5: Solve for x
    x = 187,114,549.76/21,575.70
  6. Step 6: Final answer
    x = 8,672.47

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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.