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Finding the Fourth Proportional to 7,303.60, 10,933.80 and 4,387.60

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Solution

The fourth proportional to 7,303.60, 10,933.80 and 4,387.60 is: 6,568.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,303.60 : 10,933.80 = 4,387.60 : x
  2. Step 2: Convert to fraction form
    7,303.60/10,933.80 = 4,387.60/x
  3. Step 3: Cross multiply
    7,303.60x = 10,933.80 × 4,387.60
  4. Step 4: Simplify right side
    7,303.60x = 47,973,140.88
  5. Step 5: Solve for x
    x = 47,973,140.88/7,303.60
  6. Step 6: Final answer
    x = 6,568.42

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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.