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Finding the Fourth Proportional to 7,396.75, 10,207.12 and 4,038.91

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Solution

The fourth proportional to 7,396.75, 10,207.12 and 4,038.91 is: 5,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,396.75 : 10,207.12 = 4,038.91 : x
  2. Step 2: Convert to fraction form
    7,396.75/10,207.12 = 4,038.91/x
  3. Step 3: Cross multiply
    7,396.75x = 10,207.12 × 4,038.91
  4. Step 4: Simplify right side
    7,396.75x = 41,225,639.04
  5. Step 5: Solve for x
    x = 41,225,639.04/7,396.75
  6. Step 6: Final answer
    x = 5,573.48

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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.