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Finding the Fourth Proportional to 5,339.44, 7,368.36 and 2,981.60

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Solution

The fourth proportional to 5,339.44, 7,368.36 and 2,981.60 is: 4,114.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.44 : 7,368.36 = 2,981.60 : x
  2. Step 2: Convert to fraction form
    5,339.44/7,368.36 = 2,981.60/x
  3. Step 3: Cross multiply
    5,339.44x = 7,368.36 × 2,981.60
  4. Step 4: Simplify right side
    5,339.44x = 21,969,502.18
  5. Step 5: Solve for x
    x = 21,969,502.18/5,339.44
  6. Step 6: Final answer
    x = 4,114.57

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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.