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Finding the Fourth Proportional to 29,878.51, 44,807.31 and 8,812.97

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Solution

The fourth proportional to 29,878.51, 44,807.31 and 8,812.97 is: 13,216.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,878.51 : 44,807.31 = 8,812.97 : x
  2. Step 2: Convert to fraction form
    29,878.51/44,807.31 = 8,812.97/x
  3. Step 3: Cross multiply
    29,878.51x = 44,807.31 × 8,812.97
  4. Step 4: Simplify right side
    29,878.51x = 394,885,434.75
  5. Step 5: Solve for x
    x = 394,885,434.75/29,878.51
  6. Step 6: Final answer
    x = 13,216.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.