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Finding the Fourth Proportional to 27,105.36, 40,653.93 and 7,385.49

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Solution

The fourth proportional to 27,105.36, 40,653.93 and 7,385.49 is: 11,077.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,105.36 : 40,653.93 = 7,385.49 : x
  2. Step 2: Convert to fraction form
    27,105.36/40,653.93 = 7,385.49/x
  3. Step 3: Cross multiply
    27,105.36x = 40,653.93 × 7,385.49
  4. Step 4: Simplify right side
    27,105.36x = 300,249,193.48
  5. Step 5: Solve for x
    x = 300,249,193.48/27,105.36
  6. Step 6: Final answer
    x = 11,077.12

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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.