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Finding the Fourth Proportional to 7,636.61, 11,455.07 and 5,020.79

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Solution

The fourth proportional to 7,636.61, 11,455.07 and 5,020.79 is: 7,531.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,636.61 : 11,455.07 = 5,020.79 : x
  2. Step 2: Convert to fraction form
    7,636.61/11,455.07 = 5,020.79/x
  3. Step 3: Cross multiply
    7,636.61x = 11,455.07 × 5,020.79
  4. Step 4: Simplify right side
    7,636.61x = 57,513,418.53
  5. Step 5: Solve for x
    x = 57,513,418.53/7,636.61
  6. Step 6: Final answer
    x = 7,531.27

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Double scale
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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.