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Finding the Fourth Proportional to 30,675.70, 42,332.41 and 17,246.98

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Solution

The fourth proportional to 30,675.70, 42,332.41 and 17,246.98 is: 23,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.70 : 42,332.41 = 17,246.98 : x
  2. Step 2: Convert to fraction form
    30,675.70/42,332.41 = 17,246.98/x
  3. Step 3: Cross multiply
    30,675.70x = 42,332.41 × 17,246.98
  4. Step 4: Simplify right side
    30,675.70x = 730,105,930.72
  5. Step 5: Solve for x
    x = 730,105,930.72/30,675.70
  6. Step 6: Final answer
    x = 23,800.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.