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Finding the Fourth Proportional to 27,143,564.40, 37,915,959.60 and 27,143,564.40

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Solution

The fourth proportional to 27,143,564.40, 37,915,959.60 and 27,143,564.40 is: 37,915,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143,564.40 : 37,915,959.60 = 27,143,564.40 : x
  2. Step 2: Convert to fraction form
    27,143,564.40/37,915,959.60 = 27,143,564.40/x
  3. Step 3: Cross multiply
    27,143,564.40x = 37,915,959.60 × 27,143,564.40
  4. Step 4: Simplify right side
    27,143,564.40x = 1,029,174,291,190,398.25
  5. Step 5: Solve for x
    x = 1,029,174,291,190,398.25/27,143,564.40
  6. Step 6: Final answer
    x = 37,915,959.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.