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Finding the Fourth Proportional to 8,633.10, 12,947.70 and 3,368.22

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Solution

The fourth proportional to 8,633.10, 12,947.70 and 3,368.22 is: 5,051.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.10 : 12,947.70 = 3,368.22 : x
  2. Step 2: Convert to fraction form
    8,633.10/12,947.70 = 3,368.22/x
  3. Step 3: Cross multiply
    8,633.10x = 12,947.70 × 3,368.22
  4. Step 4: Simplify right side
    8,633.10x = 43,610,702.09
  5. Step 5: Solve for x
    x = 43,610,702.09/8,633.10
  6. Step 6: Final answer
    x = 5,051.57

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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.