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Finding the Fourth Proportional to 17,705.40, 26,567.70 and 7,846.20

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Solution

The fourth proportional to 17,705.40, 26,567.70 and 7,846.20 is: 11,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,705.40 : 26,567.70 = 7,846.20 : x
  2. Step 2: Convert to fraction form
    17,705.40/26,567.70 = 7,846.20/x
  3. Step 3: Cross multiply
    17,705.40x = 26,567.70 × 7,846.20
  4. Step 4: Simplify right side
    17,705.40x = 208,455,487.74
  5. Step 5: Solve for x
    x = 208,455,487.74/17,705.40
  6. Step 6: Final answer
    x = 11,773.55

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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.