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Finding the Fourth Proportional to 21,692.19, 32,543.07 and 9,222.89

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Solution

The fourth proportional to 21,692.19, 32,543.07 and 9,222.89 is: 13,836.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.19 : 32,543.07 = 9,222.89 : x
  2. Step 2: Convert to fraction form
    21,692.19/32,543.07 = 9,222.89/x
  3. Step 3: Cross multiply
    21,692.19x = 32,543.07 × 9,222.89
  4. Step 4: Simplify right side
    21,692.19x = 300,140,957.57
  5. Step 5: Solve for x
    x = 300,140,957.57/21,692.19
  6. Step 6: Final answer
    x = 13,836.36

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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.