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Finding the Fourth Proportional to 26,368.37, 39,551.53 and 9,721.20

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Solution

The fourth proportional to 26,368.37, 39,551.53 and 9,721.20 is: 14,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,368.37 : 39,551.53 = 9,721.20 : x
  2. Step 2: Convert to fraction form
    26,368.37/39,551.53 = 9,721.20/x
  3. Step 3: Cross multiply
    26,368.37x = 39,551.53 × 9,721.20
  4. Step 4: Simplify right side
    26,368.37x = 384,488,333.44
  5. Step 5: Solve for x
    x = 384,488,333.44/26,368.37
  6. Step 6: Final answer
    x = 14,581.42

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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.