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Finding the Fourth Proportional to 5,339.88, 7,370.10 and 3,554.12

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Solution

The fourth proportional to 5,339.88, 7,370.10 and 3,554.12 is: 4,905.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.88 : 7,370.10 = 3,554.12 : x
  2. Step 2: Convert to fraction form
    5,339.88/7,370.10 = 3,554.12/x
  3. Step 3: Cross multiply
    5,339.88x = 7,370.10 × 3,554.12
  4. Step 4: Simplify right side
    5,339.88x = 26,194,219.81
  5. Step 5: Solve for x
    x = 26,194,219.81/5,339.88
  6. Step 6: Final answer
    x = 4,905.39

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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.