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Finding the Fourth Proportional to 30,432.88, 41,995.92 and 17,003.92

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Solution

The fourth proportional to 30,432.88, 41,995.92 and 17,003.92 is: 23,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,432.88 : 41,995.92 = 17,003.92 : x
  2. Step 2: Convert to fraction form
    30,432.88/41,995.92 = 17,003.92/x
  3. Step 3: Cross multiply
    30,432.88x = 41,995.92 × 17,003.92
  4. Step 4: Simplify right side
    30,432.88x = 714,095,264.01
  5. Step 5: Solve for x
    x = 714,095,264.01/30,432.88
  6. Step 6: Final answer
    x = 23,464.60

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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.