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Finding the Fourth Proportional to 35,605.86, 53,441.07 and 18,979.86

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Solution

The fourth proportional to 35,605.86, 53,441.07 and 18,979.86 is: 28,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,605.86 : 53,441.07 = 18,979.86 : x
  2. Step 2: Convert to fraction form
    35,605.86/53,441.07 = 18,979.86/x
  3. Step 3: Cross multiply
    35,605.86x = 53,441.07 × 18,979.86
  4. Step 4: Simplify right side
    35,605.86x = 1,014,304,026.85
  5. Step 5: Solve for x
    x = 1,014,304,026.85/35,605.86
  6. Step 6: Final answer
    x = 28,487.00

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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.