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Finding the Fourth Proportional to 15,885.83, 21,923.03 and 9,596.99

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Solution

The fourth proportional to 15,885.83, 21,923.03 and 9,596.99 is: 13,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,885.83 : 21,923.03 = 9,596.99 : x
  2. Step 2: Convert to fraction form
    15,885.83/21,923.03 = 9,596.99/x
  3. Step 3: Cross multiply
    15,885.83x = 21,923.03 × 9,596.99
  4. Step 4: Simplify right side
    15,885.83x = 210,395,042.29
  5. Step 5: Solve for x
    x = 210,395,042.29/15,885.83
  6. Step 6: Final answer
    x = 13,244.20

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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.