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Finding the Fourth Proportional to 30,404.82, 41,953.65 and 16,973.90

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Solution

The fourth proportional to 30,404.82, 41,953.65 and 16,973.90 is: 23,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,404.82 : 41,953.65 = 16,973.90 : x
  2. Step 2: Convert to fraction form
    30,404.82/41,953.65 = 16,973.90/x
  3. Step 3: Cross multiply
    30,404.82x = 41,953.65 × 16,973.90
  4. Step 4: Simplify right side
    30,404.82x = 712,117,179.63
  5. Step 5: Solve for x
    x = 712,117,179.63/30,404.82
  6. Step 6: Final answer
    x = 23,421.20

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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.