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Finding the Fourth Proportional to 7,338.60, 10,919.63 and 7,314.01

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Solution

The fourth proportional to 7,338.60, 10,919.63 and 7,314.01 is: 10,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.60 : 10,919.63 = 7,314.01 : x
  2. Step 2: Convert to fraction form
    7,338.60/10,919.63 = 7,314.01/x
  3. Step 3: Cross multiply
    7,338.60x = 10,919.63 × 7,314.01
  4. Step 4: Simplify right side
    7,338.60x = 79,866,274.00
  5. Step 5: Solve for x
    x = 79,866,274.00/7,338.60
  6. Step 6: Final answer
    x = 10,883.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.