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Finding the Fourth Proportional to 5,339.50, 7,368.45 and 2,949.50

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Solution

The fourth proportional to 5,339.50, 7,368.45 and 2,949.50 is: 4,070.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.50 : 7,368.45 = 2,949.50 : x
  2. Step 2: Convert to fraction form
    5,339.50/7,368.45 = 2,949.50/x
  3. Step 3: Cross multiply
    5,339.50x = 7,368.45 × 2,949.50
  4. Step 4: Simplify right side
    5,339.50x = 21,733,243.28
  5. Step 5: Solve for x
    x = 21,733,243.28/5,339.50
  6. Step 6: Final answer
    x = 4,070.28

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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.