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Finding the Fourth Proportional to 16,188.51, 22,340.07 and 9,018.51

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Solution

The fourth proportional to 16,188.51, 22,340.07 and 9,018.51 is: 12,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,188.51 : 22,340.07 = 9,018.51 : x
  2. Step 2: Convert to fraction form
    16,188.51/22,340.07 = 9,018.51/x
  3. Step 3: Cross multiply
    16,188.51x = 22,340.07 × 9,018.51
  4. Step 4: Simplify right side
    16,188.51x = 201,474,144.70
  5. Step 5: Solve for x
    x = 201,474,144.70/16,188.51
  6. Step 6: Final answer
    x = 12,445.50

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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.