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Finding the Fourth Proportional to 7,893.29, 10,892.43 and 4,356.47

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Solution

The fourth proportional to 7,893.29, 10,892.43 and 4,356.47 is: 6,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.29 : 10,892.43 = 4,356.47 : x
  2. Step 2: Convert to fraction form
    7,893.29/10,892.43 = 4,356.47/x
  3. Step 3: Cross multiply
    7,893.29x = 10,892.43 × 4,356.47
  4. Step 4: Simplify right side
    7,893.29x = 47,452,490.06
  5. Step 5: Solve for x
    x = 47,452,490.06/7,893.29
  6. Step 6: Final answer
    x = 6,011.75

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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.