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Finding the Fourth Proportional to 7,290,028.16, 9,972,810.16 and 7,259,323.04

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Solution

The fourth proportional to 7,290,028.16, 9,972,810.16 and 7,259,323.04 is: 9,930,805.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290,028.16 : 9,972,810.16 = 7,259,323.04 : x
  2. Step 2: Convert to fraction form
    7,290,028.16/9,972,810.16 = 7,259,323.04/x
  3. Step 3: Cross multiply
    7,290,028.16x = 9,972,810.16 × 7,259,323.04
  4. Step 4: Simplify right side
    7,290,028.16x = 72,395,850,568,034.09
  5. Step 5: Solve for x
    x = 72,395,850,568,034.09/7,290,028.16
  6. Step 6: Final answer
    x = 9,930,805.34

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.