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Finding the Fourth Proportional to 61,905.52, 85,429.65 and 33,611.68

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Solution

The fourth proportional to 61,905.52, 85,429.65 and 33,611.68 is: 46,384.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,905.52 : 85,429.65 = 33,611.68 : x
  2. Step 2: Convert to fraction form
    61,905.52/85,429.65 = 33,611.68/x
  3. Step 3: Cross multiply
    61,905.52x = 85,429.65 × 33,611.68
  4. Step 4: Simplify right side
    61,905.52x = 2,871,434,058.31
  5. Step 5: Solve for x
    x = 2,871,434,058.31/61,905.52
  6. Step 6: Final answer
    x = 46,384.14

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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.