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Finding the Fourth Proportional to 7,917.62, 10,927.44 and 4,934.39

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Solution

The fourth proportional to 7,917.62, 10,927.44 and 4,934.39 is: 6,810.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.62 : 10,927.44 = 4,934.39 : x
  2. Step 2: Convert to fraction form
    7,917.62/10,927.44 = 4,934.39/x
  3. Step 3: Cross multiply
    7,917.62x = 10,927.44 × 4,934.39
  4. Step 4: Simplify right side
    7,917.62x = 53,920,196.02
  5. Step 5: Solve for x
    x = 53,920,196.02/7,917.62
  6. Step 6: Final answer
    x = 6,810.16

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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.