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Finding the Fourth Proportional to 47,298.74, 70,977.87 and 19,219.48

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Solution

The fourth proportional to 47,298.74, 70,977.87 and 19,219.48 is: 28,841.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,298.74 : 70,977.87 = 19,219.48 : x
  2. Step 2: Convert to fraction form
    47,298.74/70,977.87 = 19,219.48/x
  3. Step 3: Cross multiply
    47,298.74x = 70,977.87 × 19,219.48
  4. Step 4: Simplify right side
    47,298.74x = 1,364,157,575.46
  5. Step 5: Solve for x
    x = 1,364,157,575.46/47,298.74
  6. Step 6: Final answer
    x = 28,841.31

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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.