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Finding the Fourth Proportional to 15,048.82, 20,767.42 and 8,334.30

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Solution

The fourth proportional to 15,048.82, 20,767.42 and 8,334.30 is: 11,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.82 : 20,767.42 = 8,334.30 : x
  2. Step 2: Convert to fraction form
    15,048.82/20,767.42 = 8,334.30/x
  3. Step 3: Cross multiply
    15,048.82x = 20,767.42 × 8,334.30
  4. Step 4: Simplify right side
    15,048.82x = 173,081,908.51
  5. Step 5: Solve for x
    x = 173,081,908.51/15,048.82
  6. Step 6: Final answer
    x = 11,501.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.