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Finding the Fourth Proportional to 5,339.36, 7,368.18 and 2,981.46

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Solution

The fourth proportional to 5,339.36, 7,368.18 and 2,981.46 is: 4,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.36 : 7,368.18 = 2,981.46 : x
  2. Step 2: Convert to fraction form
    5,339.36/7,368.18 = 2,981.46/x
  3. Step 3: Cross multiply
    5,339.36x = 7,368.18 × 2,981.46
  4. Step 4: Simplify right side
    5,339.36x = 21,967,933.94
  5. Step 5: Solve for x
    x = 21,967,933.94/5,339.36
  6. Step 6: Final answer
    x = 4,114.34

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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.