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Finding the Fourth Proportional to 65,977.50, 91,054.71 and 36,175.26

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Solution

The fourth proportional to 65,977.50, 91,054.71 and 36,175.26 is: 49,925.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,977.50 : 91,054.71 = 36,175.26 : x
  2. Step 2: Convert to fraction form
    65,977.50/91,054.71 = 36,175.26/x
  3. Step 3: Cross multiply
    65,977.50x = 91,054.71 × 36,175.26
  4. Step 4: Simplify right side
    65,977.50x = 3,293,927,808.47
  5. Step 5: Solve for x
    x = 3,293,927,808.47/65,977.50
  6. Step 6: Final answer
    x = 49,925.02

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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.