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Finding the Fourth Proportional to 12,043.65, 18,060.98 and 4,143.93

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Solution

The fourth proportional to 12,043.65, 18,060.98 and 4,143.93 is: 6,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,043.65 : 18,060.98 = 4,143.93 : x
  2. Step 2: Convert to fraction form
    12,043.65/18,060.98 = 4,143.93/x
  3. Step 3: Cross multiply
    12,043.65x = 18,060.98 × 4,143.93
  4. Step 4: Simplify right side
    12,043.65x = 74,843,436.85
  5. Step 5: Solve for x
    x = 74,843,436.85/12,043.65
  6. Step 6: Final answer
    x = 6,214.35

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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.