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Finding the Fourth Proportional to 15,989.90, 22,063.83 and 9,276.08

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Solution

The fourth proportional to 15,989.90, 22,063.83 and 9,276.08 is: 12,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.90 : 22,063.83 = 9,276.08 : x
  2. Step 2: Convert to fraction form
    15,989.90/22,063.83 = 9,276.08/x
  3. Step 3: Cross multiply
    15,989.90x = 22,063.83 × 9,276.08
  4. Step 4: Simplify right side
    15,989.90x = 204,665,852.19
  5. Step 5: Solve for x
    x = 204,665,852.19/15,989.90
  6. Step 6: Final answer
    x = 12,799.70

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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.