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Finding the Fourth Proportional to 47,307.43, 70,949.04 and 14,019.72

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Solution

The fourth proportional to 47,307.43, 70,949.04 and 14,019.72 is: 21,025.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,307.43 : 70,949.04 = 14,019.72 : x
  2. Step 2: Convert to fraction form
    47,307.43/70,949.04 = 14,019.72/x
  3. Step 3: Cross multiply
    47,307.43x = 70,949.04 × 14,019.72
  4. Step 4: Simplify right side
    47,307.43x = 994,685,675.07
  5. Step 5: Solve for x
    x = 994,685,675.07/47,307.43
  6. Step 6: Final answer
    x = 21,025.99

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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.