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Finding the Fourth Proportional to 51,483.93, 71,041.95 and 28,819.77

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Solution

The fourth proportional to 51,483.93, 71,041.95 and 28,819.77 is: 39,767.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,483.93 : 71,041.95 = 28,819.77 : x
  2. Step 2: Convert to fraction form
    51,483.93/71,041.95 = 28,819.77/x
  3. Step 3: Cross multiply
    51,483.93x = 71,041.95 × 28,819.77
  4. Step 4: Simplify right side
    51,483.93x = 2,047,412,659.35
  5. Step 5: Solve for x
    x = 2,047,412,659.35/51,483.93
  6. Step 6: Final answer
    x = 39,767.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.