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Finding the Fourth Proportional to 59,998.88, 90,012.90 and 18,445.88

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Solution

The fourth proportional to 59,998.88, 90,012.90 and 18,445.88 is: 27,673.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,998.88 : 90,012.90 = 18,445.88 : x
  2. Step 2: Convert to fraction form
    59,998.88/90,012.90 = 18,445.88/x
  3. Step 3: Cross multiply
    59,998.88x = 90,012.90 × 18,445.88
  4. Step 4: Simplify right side
    59,998.88x = 1,660,366,701.79
  5. Step 5: Solve for x
    x = 1,660,366,701.79/59,998.88
  6. Step 6: Final answer
    x = 27,673.30

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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.