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Finding the Fourth Proportional to 40,674.65, 61,017.90 and 12,596.87

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Solution

The fourth proportional to 40,674.65, 61,017.90 and 12,596.87 is: 18,897.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,674.65 : 61,017.90 = 12,596.87 : x
  2. Step 2: Convert to fraction form
    40,674.65/61,017.90 = 12,596.87/x
  3. Step 3: Cross multiply
    40,674.65x = 61,017.90 × 12,596.87
  4. Step 4: Simplify right side
    40,674.65x = 768,634,248.88
  5. Step 5: Solve for x
    x = 768,634,248.88/40,674.65
  6. Step 6: Final answer
    x = 18,897.13

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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.