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Finding the Fourth Proportional to 7,386.51, 11,092.98 and 7,089.22

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Solution

The fourth proportional to 7,386.51, 11,092.98 and 7,089.22 is: 10,646.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.51 : 11,092.98 = 7,089.22 : x
  2. Step 2: Convert to fraction form
    7,386.51/11,092.98 = 7,089.22/x
  3. Step 3: Cross multiply
    7,386.51x = 11,092.98 × 7,089.22
  4. Step 4: Simplify right side
    7,386.51x = 78,640,616.13
  5. Step 5: Solve for x
    x = 78,640,616.13/7,386.51
  6. Step 6: Final answer
    x = 10,646.51

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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.