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Finding the Fourth Proportional to 17,967.90, 26,900.65 and 17,455.90

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Solution

The fourth proportional to 17,967.90, 26,900.65 and 17,455.90 is: 26,134.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,967.90 : 26,900.65 = 17,455.90 : x
  2. Step 2: Convert to fraction form
    17,967.90/26,900.65 = 17,455.90/x
  3. Step 3: Cross multiply
    17,967.90x = 26,900.65 × 17,455.90
  4. Step 4: Simplify right side
    17,967.90x = 469,575,056.34
  5. Step 5: Solve for x
    x = 469,575,056.34/17,967.90
  6. Step 6: Final answer
    x = 26,134.11

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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.