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Finding the Fourth Proportional to 17,398.58, 26,051.52 and 11,862.80

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Solution

The fourth proportional to 17,398.58, 26,051.52 and 11,862.80 is: 17,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,398.58 : 26,051.52 = 11,862.80 : x
  2. Step 2: Convert to fraction form
    17,398.58/26,051.52 = 11,862.80/x
  3. Step 3: Cross multiply
    17,398.58x = 26,051.52 × 11,862.80
  4. Step 4: Simplify right side
    17,398.58x = 309,043,971.46
  5. Step 5: Solve for x
    x = 309,043,971.46/17,398.58
  6. Step 6: Final answer
    x = 17,762.60

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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.