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Finding the Fourth Proportional to 42,672.99, 64,017.74 and 16,375.68

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Solution

The fourth proportional to 42,672.99, 64,017.74 and 16,375.68 is: 24,566.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,672.99 : 64,017.74 = 16,375.68 : x
  2. Step 2: Convert to fraction form
    42,672.99/64,017.74 = 16,375.68/x
  3. Step 3: Cross multiply
    42,672.99x = 64,017.74 × 16,375.68
  4. Step 4: Simplify right side
    42,672.99x = 1,048,333,942.68
  5. Step 5: Solve for x
    x = 1,048,333,942.68/42,672.99
  6. Step 6: Final answer
    x = 24,566.69

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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.