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Finding the Fourth Proportional to 17,392.80, 26,050.80 and 6,999.20

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Solution

The fourth proportional to 17,392.80, 26,050.80 and 6,999.20 is: 10,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,392.80 : 26,050.80 = 6,999.20 : x
  2. Step 2: Convert to fraction form
    17,392.80/26,050.80 = 6,999.20/x
  3. Step 3: Cross multiply
    17,392.80x = 26,050.80 × 6,999.20
  4. Step 4: Simplify right side
    17,392.80x = 182,334,759.36
  5. Step 5: Solve for x
    x = 182,334,759.36/17,392.80
  6. Step 6: Final answer
    x = 10,483.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.