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Finding the Fourth Proportional to 7,047,785.60, 10,548,058.80 and 7,047,785.60

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Solution

The fourth proportional to 7,047,785.60, 10,548,058.80 and 7,047,785.60 is: 10,548,058.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047,785.60 : 10,548,058.80 = 7,047,785.60 : x
  2. Step 2: Convert to fraction form
    7,047,785.60/10,548,058.80 = 7,047,785.60/x
  3. Step 3: Cross multiply
    7,047,785.60x = 10,548,058.80 × 7,047,785.60
  4. Step 4: Simplify right side
    7,047,785.60x = 74,340,456,918,593.28
  5. Step 5: Solve for x
    x = 74,340,456,918,593.28/7,047,785.60
  6. Step 6: Final answer
    x = 10,548,058.80

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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.