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Finding the Fourth Proportional to 56,066.82, 77,372.79 and 30,917.22

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Solution

The fourth proportional to 56,066.82, 77,372.79 and 30,917.22 is: 42,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,066.82 : 77,372.79 = 30,917.22 : x
  2. Step 2: Convert to fraction form
    56,066.82/77,372.79 = 30,917.22/x
  3. Step 3: Cross multiply
    56,066.82x = 77,372.79 × 30,917.22
  4. Step 4: Simplify right side
    56,066.82x = 2,392,151,570.44
  5. Step 5: Solve for x
    x = 2,392,151,570.44/56,066.82
  6. Step 6: Final answer
    x = 42,666.08

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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.