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Finding the Fourth Proportional to 15,596.84, 21,539.37 and 9,934.12

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Solution

The fourth proportional to 15,596.84, 21,539.37 and 9,934.12 is: 13,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,596.84 : 21,539.37 = 9,934.12 : x
  2. Step 2: Convert to fraction form
    15,596.84/21,539.37 = 9,934.12/x
  3. Step 3: Cross multiply
    15,596.84x = 21,539.37 × 9,934.12
  4. Step 4: Simplify right side
    15,596.84x = 213,974,770.33
  5. Step 5: Solve for x
    x = 213,974,770.33/15,596.84
  6. Step 6: Final answer
    x = 13,719.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.