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Finding the Fourth Proportional to 5,357.65, 7,384.12 and 4,520.52

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Solution

The fourth proportional to 5,357.65, 7,384.12 and 4,520.52 is: 6,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357.65 : 7,384.12 = 4,520.52 : x
  2. Step 2: Convert to fraction form
    5,357.65/7,384.12 = 4,520.52/x
  3. Step 3: Cross multiply
    5,357.65x = 7,384.12 × 4,520.52
  4. Step 4: Simplify right side
    5,357.65x = 33,380,025.22
  5. Step 5: Solve for x
    x = 33,380,025.22/5,357.65
  6. Step 6: Final answer
    x = 6,230.35

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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.