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Finding the Fourth Proportional to 7,296.64, 10,069.92 and 4,152.64

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Solution

The fourth proportional to 7,296.64, 10,069.92 and 4,152.64 is: 5,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,296.64 : 10,069.92 = 4,152.64 : x
  2. Step 2: Convert to fraction form
    7,296.64/10,069.92 = 4,152.64/x
  3. Step 3: Cross multiply
    7,296.64x = 10,069.92 × 4,152.64
  4. Step 4: Simplify right side
    7,296.64x = 41,816,752.59
  5. Step 5: Solve for x
    x = 41,816,752.59/7,296.64
  6. Step 6: Final answer
    x = 5,730.96

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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.