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Finding the Fourth Proportional to 30,472.40, 42,051.15 and 17,044.22

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Solution

The fourth proportional to 30,472.40, 42,051.15 and 17,044.22 is: 23,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,472.40 : 42,051.15 = 17,044.22 : x
  2. Step 2: Convert to fraction form
    30,472.40/42,051.15 = 17,044.22/x
  3. Step 3: Cross multiply
    30,472.40x = 42,051.15 × 17,044.22
  4. Step 4: Simplify right side
    30,472.40x = 716,729,156.98
  5. Step 5: Solve for x
    x = 716,729,156.98/30,472.40
  6. Step 6: Final answer
    x = 23,520.60

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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.