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Finding the Fourth Proportional to 19,720.44, 29,580.69 and 5,869.44

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Solution

The fourth proportional to 19,720.44, 29,580.69 and 5,869.44 is: 8,804.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.44 : 29,580.69 = 5,869.44 : x
  2. Step 2: Convert to fraction form
    19,720.44/29,580.69 = 5,869.44/x
  3. Step 3: Cross multiply
    19,720.44x = 29,580.69 × 5,869.44
  4. Step 4: Simplify right side
    19,720.44x = 173,622,085.11
  5. Step 5: Solve for x
    x = 173,622,085.11/19,720.44
  6. Step 6: Final answer
    x = 8,804.17

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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.