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Finding the Fourth Proportional to 50,871.95, 76,277.95 and 20,877.25

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Solution

The fourth proportional to 50,871.95, 76,277.95 and 20,877.25 is: 31,303.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,871.95 : 76,277.95 = 20,877.25 : x
  2. Step 2: Convert to fraction form
    50,871.95/76,277.95 = 20,877.25/x
  3. Step 3: Cross multiply
    50,871.95x = 76,277.95 × 20,877.25
  4. Step 4: Simplify right side
    50,871.95x = 1,592,473,831.64
  5. Step 5: Solve for x
    x = 1,592,473,831.64/50,871.95
  6. Step 6: Final answer
    x = 31,303.57

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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.