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Finding the Fourth Proportional to 30,673.74, 42,329.55 and 17,425.74

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Solution

The fourth proportional to 30,673.74, 42,329.55 and 17,425.74 is: 24,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,673.74 : 42,329.55 = 17,425.74 : x
  2. Step 2: Convert to fraction form
    30,673.74/42,329.55 = 17,425.74/x
  3. Step 3: Cross multiply
    30,673.74x = 42,329.55 × 17,425.74
  4. Step 4: Simplify right side
    30,673.74x = 737,623,732.62
  5. Step 5: Solve for x
    x = 737,623,732.62/30,673.74
  6. Step 6: Final answer
    x = 24,047.40

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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.