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Finding the Fourth Proportional to 7,908.72, 10,913.74 and 4,552.62

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Solution

The fourth proportional to 7,908.72, 10,913.74 and 4,552.62 is: 6,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.72 : 10,913.74 = 4,552.62 : x
  2. Step 2: Convert to fraction form
    7,908.72/10,913.74 = 4,552.62/x
  3. Step 3: Cross multiply
    7,908.72x = 10,913.74 × 4,552.62
  4. Step 4: Simplify right side
    7,908.72x = 49,686,111.00
  5. Step 5: Solve for x
    x = 49,686,111.00/7,908.72
  6. Step 6: Final answer
    x = 6,282.45

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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.