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Finding the Fourth Proportional to 44,872, 67,336.80 and 20,248

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Solution

The fourth proportional to 44,872, 67,336.80 and 20,248 is: 30,385.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,872 : 67,336.80 = 20,248 : x
  2. Step 2: Convert to fraction form
    44,872/67,336.80 = 20,248/x
  3. Step 3: Cross multiply
    44,872x = 67,336.80 × 20,248
  4. Step 4: Simplify right side
    44,872x = 1,363,435,526.40
  5. Step 5: Solve for x
    x = 1,363,435,526.40/44,872
  6. Step 6: Final answer
    x = 30,385.00

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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.