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Finding the Fourth Proportional to 56,484.99, 77,949.68 and 31,334.49

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Solution

The fourth proportional to 56,484.99, 77,949.68 and 31,334.49 is: 43,241.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,484.99 : 77,949.68 = 31,334.49 : x
  2. Step 2: Convert to fraction form
    56,484.99/77,949.68 = 31,334.49/x
  3. Step 3: Cross multiply
    56,484.99x = 77,949.68 × 31,334.49
  4. Step 4: Simplify right side
    56,484.99x = 2,442,513,311.79
  5. Step 5: Solve for x
    x = 2,442,513,311.79/56,484.99
  6. Step 6: Final answer
    x = 43,241.81

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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.