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Finding the Fourth Proportional to 15,073.98, 20,819.64 and 12,059.56

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Solution

The fourth proportional to 15,073.98, 20,819.64 and 12,059.56 is: 16,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.98 : 20,819.64 = 12,059.56 : x
  2. Step 2: Convert to fraction form
    15,073.98/20,819.64 = 12,059.56/x
  3. Step 3: Cross multiply
    15,073.98x = 20,819.64 × 12,059.56
  4. Step 4: Simplify right side
    15,073.98x = 251,075,697.76
  5. Step 5: Solve for x
    x = 251,075,697.76/15,073.98
  6. Step 6: Final answer
    x = 16,656.23

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1.5x scale

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.