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Finding the Fourth Proportional to 61,666.61, 85,099.77 and 33,372.32

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Solution

The fourth proportional to 61,666.61, 85,099.77 and 33,372.32 is: 46,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,666.61 : 85,099.77 = 33,372.32 : x
  2. Step 2: Convert to fraction form
    61,666.61/85,099.77 = 33,372.32/x
  3. Step 3: Cross multiply
    61,666.61x = 85,099.77 × 33,372.32
  4. Step 4: Simplify right side
    61,666.61x = 2,839,976,330.87
  5. Step 5: Solve for x
    x = 2,839,976,330.87/61,666.61
  6. Step 6: Final answer
    x = 46,053.72

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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.