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Finding the Fourth Proportional to 62,903.64, 94,361.40 and 20,784

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Solution

The fourth proportional to 62,903.64, 94,361.40 and 20,784 is: 31,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,903.64 : 94,361.40 = 20,784 : x
  2. Step 2: Convert to fraction form
    62,903.64/94,361.40 = 20,784/x
  3. Step 3: Cross multiply
    62,903.64x = 94,361.40 × 20,784
  4. Step 4: Simplify right side
    62,903.64x = 1,961,207,337.60
  5. Step 5: Solve for x
    x = 1,961,207,337.60/62,903.64
  6. Step 6: Final answer
    x = 31,177.96

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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.