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Finding the Fourth Proportional to 21,583.88, 32,373.48 and 5,790.50

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Solution

The fourth proportional to 21,583.88, 32,373.48 and 5,790.50 is: 8,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583.88 : 32,373.48 = 5,790.50 : x
  2. Step 2: Convert to fraction form
    21,583.88/32,373.48 = 5,790.50/x
  3. Step 3: Cross multiply
    21,583.88x = 32,373.48 × 5,790.50
  4. Step 4: Simplify right side
    21,583.88x = 187,458,635.94
  5. Step 5: Solve for x
    x = 187,458,635.94/21,583.88
  6. Step 6: Final answer
    x = 8,685.12

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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.