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Finding the Fourth Proportional to 5,355, 7,394.46 and 3,368.88

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Solution

The fourth proportional to 5,355, 7,394.46 and 3,368.88 is: 4,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355 : 7,394.46 = 3,368.88 : x
  2. Step 2: Convert to fraction form
    5,355/7,394.46 = 3,368.88/x
  3. Step 3: Cross multiply
    5,355x = 7,394.46 × 3,368.88
  4. Step 4: Simplify right side
    5,355x = 24,911,048.40
  5. Step 5: Solve for x
    x = 24,911,048.40/5,355
  6. Step 6: Final answer
    x = 4,651.92

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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.