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Finding the Fourth Proportional to 7,892.43, 10,895.45 and 6,187.93

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Solution

The fourth proportional to 7,892.43, 10,895.45 and 6,187.93 is: 8,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.43 : 10,895.45 = 6,187.93 : x
  2. Step 2: Convert to fraction form
    7,892.43/10,895.45 = 6,187.93/x
  3. Step 3: Cross multiply
    7,892.43x = 10,895.45 × 6,187.93
  4. Step 4: Simplify right side
    7,892.43x = 67,420,281.92
  5. Step 5: Solve for x
    x = 67,420,281.92/7,892.43
  6. Step 6: Final answer
    x = 8,542.40

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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.