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Finding the Fourth Proportional to 65,983.60, 91,055.64 and 35,767.60

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Solution

The fourth proportional to 65,983.60, 91,055.64 and 35,767.60 is: 49,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,983.60 : 91,055.64 = 35,767.60 : x
  2. Step 2: Convert to fraction form
    65,983.60/91,055.64 = 35,767.60/x
  3. Step 3: Cross multiply
    65,983.60x = 91,055.64 × 35,767.60
  4. Step 4: Simplify right side
    65,983.60x = 3,256,841,709.26
  5. Step 5: Solve for x
    x = 3,256,841,709.26/65,983.60
  6. Step 6: Final answer
    x = 49,358.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.