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Finding the Fourth Proportional to 66,656.24, 99,984.40 and 17,408.24

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Solution

The fourth proportional to 66,656.24, 99,984.40 and 17,408.24 is: 26,112.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,656.24 : 99,984.40 = 17,408.24 : x
  2. Step 2: Convert to fraction form
    66,656.24/99,984.40 = 17,408.24/x
  3. Step 3: Cross multiply
    66,656.24x = 99,984.40 × 17,408.24
  4. Step 4: Simplify right side
    66,656.24x = 1,740,552,431.46
  5. Step 5: Solve for x
    x = 1,740,552,431.46/66,656.24
  6. Step 6: Final answer
    x = 26,112.37

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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.