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Finding the Fourth Proportional to 48,991.63, 67,606.48 and 28,849.36

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Solution

The fourth proportional to 48,991.63, 67,606.48 and 28,849.36 is: 39,810.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,991.63 : 67,606.48 = 28,849.36 : x
  2. Step 2: Convert to fraction form
    48,991.63/67,606.48 = 28,849.36/x
  3. Step 3: Cross multiply
    48,991.63x = 67,606.48 × 28,849.36
  4. Step 4: Simplify right side
    48,991.63x = 1,950,403,679.85
  5. Step 5: Solve for x
    x = 1,950,403,679.85/48,991.63
  6. Step 6: Final answer
    x = 39,810.96

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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.