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Finding the Fourth Proportional to 13,267.70, 19,899.08 and 5,368.15

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Solution

The fourth proportional to 13,267.70, 19,899.08 and 5,368.15 is: 8,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.70 : 19,899.08 = 5,368.15 : x
  2. Step 2: Convert to fraction form
    13,267.70/19,899.08 = 5,368.15/x
  3. Step 3: Cross multiply
    13,267.70x = 19,899.08 × 5,368.15
  4. Step 4: Simplify right side
    13,267.70x = 106,821,119.97
  5. Step 5: Solve for x
    x = 106,821,119.97/13,267.70
  6. Step 6: Final answer
    x = 8,051.22

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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.