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Finding the Fourth Proportional to 7,658,945.60, 11,476,608.60 and 6,643,302.80

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Solution

The fourth proportional to 7,658,945.60, 11,476,608.60 and 6,643,302.80 is: 9,954,710.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658,945.60 : 11,476,608.60 = 6,643,302.80 : x
  2. Step 2: Convert to fraction form
    7,658,945.60/11,476,608.60 = 6,643,302.80/x
  3. Step 3: Cross multiply
    7,658,945.60x = 11,476,608.60 × 6,643,302.80
  4. Step 4: Simplify right side
    7,658,945.60x = 76,242,586,046,884.08
  5. Step 5: Solve for x
    x = 76,242,586,046,884.08/7,658,945.60
  6. Step 6: Final answer
    x = 9,954,710.48

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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.