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Finding the Fourth Proportional to 17,405.60, 26,108.40 and 5,093.60

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Solution

The fourth proportional to 17,405.60, 26,108.40 and 5,093.60 is: 7,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,405.60 : 26,108.40 = 5,093.60 : x
  2. Step 2: Convert to fraction form
    17,405.60/26,108.40 = 5,093.60/x
  3. Step 3: Cross multiply
    17,405.60x = 26,108.40 × 5,093.60
  4. Step 4: Simplify right side
    17,405.60x = 132,985,746.24
  5. Step 5: Solve for x
    x = 132,985,746.24/17,405.60
  6. Step 6: Final answer
    x = 7,640.40

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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.