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Finding the Fourth Proportional to 42,668.94, 64,012.51 and 16,373.46

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Solution

The fourth proportional to 42,668.94, 64,012.51 and 16,373.46 is: 24,563.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,668.94 : 64,012.51 = 16,373.46 : x
  2. Step 2: Convert to fraction form
    42,668.94/64,012.51 = 16,373.46/x
  3. Step 3: Cross multiply
    42,668.94x = 64,012.51 × 16,373.46
  4. Step 4: Simplify right side
    42,668.94x = 1,048,106,271.98
  5. Step 5: Solve for x
    x = 1,048,106,271.98/42,668.94
  6. Step 6: Final answer
    x = 24,563.68

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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.