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Finding the Fourth Proportional to 65,977.80, 99,054.24 and 63,703.32

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Solution

The fourth proportional to 65,977.80, 99,054.24 and 63,703.32 is: 95,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,977.80 : 99,054.24 = 63,703.32 : x
  2. Step 2: Convert to fraction form
    65,977.80/99,054.24 = 63,703.32/x
  3. Step 3: Cross multiply
    65,977.80x = 99,054.24 × 63,703.32
  4. Step 4: Simplify right side
    65,977.80x = 6,310,083,948.08
  5. Step 5: Solve for x
    x = 6,310,083,948.08/65,977.80
  6. Step 6: Final answer
    x = 95,639.50

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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.