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Finding the Fourth Proportional to 6,878.49, 9,492.16 and 4,045.31

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Solution

The fourth proportional to 6,878.49, 9,492.16 and 4,045.31 is: 5,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.49 : 9,492.16 = 4,045.31 : x
  2. Step 2: Convert to fraction form
    6,878.49/9,492.16 = 4,045.31/x
  3. Step 3: Cross multiply
    6,878.49x = 9,492.16 × 4,045.31
  4. Step 4: Simplify right side
    6,878.49x = 38,398,709.54
  5. Step 5: Solve for x
    x = 38,398,709.54/6,878.49
  6. Step 6: Final answer
    x = 5,582.43

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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.