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Finding the Fourth Proportional to 7,937.61, 11,802.53 and 7,605.44

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Solution

The fourth proportional to 7,937.61, 11,802.53 and 7,605.44 is: 11,308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.61 : 11,802.53 = 7,605.44 : x
  2. Step 2: Convert to fraction form
    7,937.61/11,802.53 = 7,605.44/x
  3. Step 3: Cross multiply
    7,937.61x = 11,802.53 × 7,605.44
  4. Step 4: Simplify right side
    7,937.61x = 89,763,336.72
  5. Step 5: Solve for x
    x = 89,763,336.72/7,937.61
  6. Step 6: Final answer
    x = 11,308.61

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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.