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Finding the Fourth Proportional to 19,890.62, 29,832.69 and 6,039.62

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Solution

The fourth proportional to 19,890.62, 29,832.69 and 6,039.62 is: 9,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.62 : 29,832.69 = 6,039.62 : x
  2. Step 2: Convert to fraction form
    19,890.62/29,832.69 = 6,039.62/x
  3. Step 3: Cross multiply
    19,890.62x = 29,832.69 × 6,039.62
  4. Step 4: Simplify right side
    19,890.62x = 180,178,111.18
  5. Step 5: Solve for x
    x = 180,178,111.18/19,890.62
  6. Step 6: Final answer
    x = 9,058.45

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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.