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Finding the Fourth Proportional to 47,039, 70,558.50 and 14,207

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Solution

The fourth proportional to 47,039, 70,558.50 and 14,207 is: 21,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,039 : 70,558.50 = 14,207 : x
  2. Step 2: Convert to fraction form
    47,039/70,558.50 = 14,207/x
  3. Step 3: Cross multiply
    47,039x = 70,558.50 × 14,207
  4. Step 4: Simplify right side
    47,039x = 1,002,424,609.50
  5. Step 5: Solve for x
    x = 1,002,424,609.50/47,039
  6. Step 6: Final answer
    x = 21,310.50

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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.