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Finding the Fourth Proportional to 16,208.70, 22,368.02 and 8,756.70

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Solution

The fourth proportional to 16,208.70, 22,368.02 and 8,756.70 is: 12,084.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,208.70 : 22,368.02 = 8,756.70 : x
  2. Step 2: Convert to fraction form
    16,208.70/22,368.02 = 8,756.70/x
  3. Step 3: Cross multiply
    16,208.70x = 22,368.02 × 8,756.70
  4. Step 4: Simplify right side
    16,208.70x = 195,870,040.73
  5. Step 5: Solve for x
    x = 195,870,040.73/16,208.70
  6. Step 6: Final answer
    x = 12,084.25

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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.