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Finding the Fourth Proportional to 7,364.60, 11,022.60 and 5,712.20

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Solution

The fourth proportional to 7,364.60, 11,022.60 and 5,712.20 is: 8,549.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,364.60 : 11,022.60 = 5,712.20 : x
  2. Step 2: Convert to fraction form
    7,364.60/11,022.60 = 5,712.20/x
  3. Step 3: Cross multiply
    7,364.60x = 11,022.60 × 5,712.20
  4. Step 4: Simplify right side
    7,364.60x = 62,963,295.72
  5. Step 5: Solve for x
    x = 62,963,295.72/7,364.60
  6. Step 6: Final answer
    x = 8,549.45

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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.