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Finding the Fourth Proportional to 10,059.80, 15,089.70 and 8,674.70

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Solution

The fourth proportional to 10,059.80, 15,089.70 and 8,674.70 is: 13,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,059.80 : 15,089.70 = 8,674.70 : x
  2. Step 2: Convert to fraction form
    10,059.80/15,089.70 = 8,674.70/x
  3. Step 3: Cross multiply
    10,059.80x = 15,089.70 × 8,674.70
  4. Step 4: Simplify right side
    10,059.80x = 130,898,620.59
  5. Step 5: Solve for x
    x = 130,898,620.59/10,059.80
  6. Step 6: Final answer
    x = 13,012.05

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1.5x scale

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.