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Finding the Fourth Proportional to 7,075.60, 10,600.60 and 6,614.80

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Solution

The fourth proportional to 7,075.60, 10,600.60 and 6,614.80 is: 9,910.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.60 : 10,600.60 = 6,614.80 : x
  2. Step 2: Convert to fraction form
    7,075.60/10,600.60 = 6,614.80/x
  3. Step 3: Cross multiply
    7,075.60x = 10,600.60 × 6,614.80
  4. Step 4: Simplify right side
    7,075.60x = 70,120,848.88
  5. Step 5: Solve for x
    x = 70,120,848.88/7,075.60
  6. Step 6: Final answer
    x = 9,910.23

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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.