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Finding the Fourth Proportional to 47,100.40, 70,606.68 and 15,913.84

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Solution

The fourth proportional to 47,100.40, 70,606.68 and 15,913.84 is: 23,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,100.40 : 70,606.68 = 15,913.84 : x
  2. Step 2: Convert to fraction form
    47,100.40/70,606.68 = 15,913.84/x
  3. Step 3: Cross multiply
    47,100.40x = 70,606.68 × 15,913.84
  4. Step 4: Simplify right side
    47,100.40x = 1,123,623,408.45
  5. Step 5: Solve for x
    x = 1,123,623,408.45/47,100.40
  6. Step 6: Final answer
    x = 23,855.92

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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.