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Finding the Fourth Proportional to 7,937.72, 10,953.16 and 4,400.04

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Solution

The fourth proportional to 7,937.72, 10,953.16 and 4,400.04 is: 6,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.72 : 10,953.16 = 4,400.04 : x
  2. Step 2: Convert to fraction form
    7,937.72/10,953.16 = 4,400.04/x
  3. Step 3: Cross multiply
    7,937.72x = 10,953.16 × 4,400.04
  4. Step 4: Simplify right side
    7,937.72x = 48,194,342.13
  5. Step 5: Solve for x
    x = 48,194,342.13/7,937.72
  6. Step 6: Final answer
    x = 6,071.56

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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.