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Finding the Fourth Proportional to 65,577.60, 91,983.60 and 65,577.60

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Solution

The fourth proportional to 65,577.60, 91,983.60 and 65,577.60 is: 91,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,577.60 : 91,983.60 = 65,577.60 : x
  2. Step 2: Convert to fraction form
    65,577.60/91,983.60 = 65,577.60/x
  3. Step 3: Cross multiply
    65,577.60x = 91,983.60 × 65,577.60
  4. Step 4: Simplify right side
    65,577.60x = 6,032,063,727.36
  5. Step 5: Solve for x
    x = 6,032,063,727.36/65,577.60
  6. Step 6: Final answer
    x = 91,983.60

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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.