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Finding the Fourth Proportional to 14,684.70, 22,015.29 and 7,661.19

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Solution

The fourth proportional to 14,684.70, 22,015.29 and 7,661.19 is: 11,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,684.70 : 22,015.29 = 7,661.19 : x
  2. Step 2: Convert to fraction form
    14,684.70/22,015.29 = 7,661.19/x
  3. Step 3: Cross multiply
    14,684.70x = 22,015.29 × 7,661.19
  4. Step 4: Simplify right side
    14,684.70x = 168,663,319.60
  5. Step 5: Solve for x
    x = 168,663,319.60/14,684.70
  6. Step 6: Final answer
    x = 11,485.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.