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Finding the Fourth Proportional to 47,307.93, 70,949.79 and 14,020.22

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Solution

The fourth proportional to 47,307.93, 70,949.79 and 14,020.22 is: 21,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,307.93 : 70,949.79 = 14,020.22 : x
  2. Step 2: Convert to fraction form
    47,307.93/70,949.79 = 14,020.22/x
  3. Step 3: Cross multiply
    47,307.93x = 70,949.79 × 14,020.22
  4. Step 4: Simplify right side
    47,307.93x = 994,731,664.75
  5. Step 5: Solve for x
    x = 994,731,664.75/47,307.93
  6. Step 6: Final answer
    x = 21,026.74

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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.