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Finding the Fourth Proportional to 12,043.80, 18,051.73 and 5,019.89

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Solution

The fourth proportional to 12,043.80, 18,051.73 and 5,019.89 is: 7,524.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,043.80 : 18,051.73 = 5,019.89 : x
  2. Step 2: Convert to fraction form
    12,043.80/18,051.73 = 5,019.89/x
  3. Step 3: Cross multiply
    12,043.80x = 18,051.73 × 5,019.89
  4. Step 4: Simplify right side
    12,043.80x = 90,617,596.10
  5. Step 5: Solve for x
    x = 90,617,596.10/12,043.80
  6. Step 6: Final answer
    x = 7,524.00

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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.