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Finding the Fourth Proportional to 48,614.96, 67,083.72 and 28,190

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Solution

The fourth proportional to 48,614.96, 67,083.72 and 28,190 is: 38,899.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,614.96 : 67,083.72 = 28,190 : x
  2. Step 2: Convert to fraction form
    48,614.96/67,083.72 = 28,190/x
  3. Step 3: Cross multiply
    48,614.96x = 67,083.72 × 28,190
  4. Step 4: Simplify right side
    48,614.96x = 1,891,090,066.80
  5. Step 5: Solve for x
    x = 1,891,090,066.80/48,614.96
  6. Step 6: Final answer
    x = 38,899.34

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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.