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Finding the Fourth Proportional to 7,344.72, 10,954.26 and 7,085.52

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Solution

The fourth proportional to 7,344.72, 10,954.26 and 7,085.52 is: 10,567.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.72 : 10,954.26 = 7,085.52 : x
  2. Step 2: Convert to fraction form
    7,344.72/10,954.26 = 7,085.52/x
  3. Step 3: Cross multiply
    7,344.72x = 10,954.26 × 7,085.52
  4. Step 4: Simplify right side
    7,344.72x = 77,616,628.32
  5. Step 5: Solve for x
    x = 77,616,628.32/7,344.72
  6. Step 6: Final answer
    x = 10,567.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.