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Finding the Fourth Proportional to 63,643.42, 87,831.03 and 35,348.50

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Solution

The fourth proportional to 63,643.42, 87,831.03 and 35,348.50 is: 48,782.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,643.42 : 87,831.03 = 35,348.50 : x
  2. Step 2: Convert to fraction form
    63,643.42/87,831.03 = 35,348.50/x
  3. Step 3: Cross multiply
    63,643.42x = 87,831.03 × 35,348.50
  4. Step 4: Simplify right side
    63,643.42x = 3,104,695,163.96
  5. Step 5: Solve for x
    x = 3,104,695,163.96/63,643.42
  6. Step 6: Final answer
    x = 48,782.66

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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.