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Finding the Fourth Proportional to 7,392.90, 10,202.45 and 4,035.91

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Solution

The fourth proportional to 7,392.90, 10,202.45 and 4,035.91 is: 5,569.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.90 : 10,202.45 = 4,035.91 : x
  2. Step 2: Convert to fraction form
    7,392.90/10,202.45 = 4,035.91/x
  3. Step 3: Cross multiply
    7,392.90x = 10,202.45 × 4,035.91
  4. Step 4: Simplify right side
    7,392.90x = 41,176,169.98
  5. Step 5: Solve for x
    x = 41,176,169.98/7,392.90
  6. Step 6: Final answer
    x = 5,569.69

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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.