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Finding the Fourth Proportional to 21,692.31, 32,554.95 and 15,025.08

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Solution

The fourth proportional to 21,692.31, 32,554.95 and 15,025.08 is: 22,549.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.31 : 32,554.95 = 15,025.08 : x
  2. Step 2: Convert to fraction form
    21,692.31/32,554.95 = 15,025.08/x
  3. Step 3: Cross multiply
    21,692.31x = 32,554.95 × 15,025.08
  4. Step 4: Simplify right side
    21,692.31x = 489,140,728.15
  5. Step 5: Solve for x
    x = 489,140,728.15/21,692.31
  6. Step 6: Final answer
    x = 22,549.04

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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.