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Finding the Fourth Proportional to 69,605.76, 104,408.64 and 17,015.16

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Solution

The fourth proportional to 69,605.76, 104,408.64 and 17,015.16 is: 25,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,605.76 : 104,408.64 = 17,015.16 : x
  2. Step 2: Convert to fraction form
    69,605.76/104,408.64 = 17,015.16/x
  3. Step 3: Cross multiply
    69,605.76x = 104,408.64 × 17,015.16
  4. Step 4: Simplify right side
    69,605.76x = 1,776,529,714.98
  5. Step 5: Solve for x
    x = 1,776,529,714.98/69,605.76
  6. Step 6: Final answer
    x = 25,522.74

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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.