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Finding the Fourth Proportional to 67,384.55, 101,058.60 and 19,999.55

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Solution

The fourth proportional to 67,384.55, 101,058.60 and 19,999.55 is: 29,993.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,384.55 : 101,058.60 = 19,999.55 : x
  2. Step 2: Convert to fraction form
    67,384.55/101,058.60 = 19,999.55/x
  3. Step 3: Cross multiply
    67,384.55x = 101,058.60 × 19,999.55
  4. Step 4: Simplify right side
    67,384.55x = 2,021,126,523.63
  5. Step 5: Solve for x
    x = 2,021,126,523.63/67,384.55
  6. Step 6: Final answer
    x = 29,993.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.