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Finding the Fourth Proportional to 65,303.82, 90,124.64 and 36,622.93

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Solution

The fourth proportional to 65,303.82, 90,124.64 and 36,622.93 is: 50,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,303.82 : 90,124.64 = 36,622.93 : x
  2. Step 2: Convert to fraction form
    65,303.82/90,124.64 = 36,622.93/x
  3. Step 3: Cross multiply
    65,303.82x = 90,124.64 × 36,622.93
  4. Step 4: Simplify right side
    65,303.82x = 3,300,628,382.00
  5. Step 5: Solve for x
    x = 3,300,628,382.00/65,303.82
  6. Step 6: Final answer
    x = 50,542.65

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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.