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Finding the Fourth Proportional to 7,893.32, 10,892.71 and 4,356.46

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Solution

The fourth proportional to 7,893.32, 10,892.71 and 4,356.46 is: 6,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.32 : 10,892.71 = 4,356.46 : x
  2. Step 2: Convert to fraction form
    7,893.32/10,892.71 = 4,356.46/x
  3. Step 3: Cross multiply
    7,893.32x = 10,892.71 × 4,356.46
  4. Step 4: Simplify right side
    7,893.32x = 47,453,579.16
  5. Step 5: Solve for x
    x = 47,453,579.16/7,893.32
  6. Step 6: Final answer
    x = 6,011.87

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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.