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Finding the Fourth Proportional to 21,394.52, 32,084.95 and 7,351.16

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Solution

The fourth proportional to 21,394.52, 32,084.95 and 7,351.16 is: 11,024.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,394.52 : 32,084.95 = 7,351.16 : x
  2. Step 2: Convert to fraction form
    21,394.52/32,084.95 = 7,351.16/x
  3. Step 3: Cross multiply
    21,394.52x = 32,084.95 × 7,351.16
  4. Step 4: Simplify right side
    21,394.52x = 235,861,601.04
  5. Step 5: Solve for x
    x = 235,861,601.04/21,394.52
  6. Step 6: Final answer
    x = 11,024.39

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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.