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Finding the Fourth Proportional to 60,498.36, 90,757.22 and 21,066.68

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Solution

The fourth proportional to 60,498.36, 90,757.22 and 21,066.68 is: 31,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,498.36 : 90,757.22 = 21,066.68 : x
  2. Step 2: Convert to fraction form
    60,498.36/90,757.22 = 21,066.68/x
  3. Step 3: Cross multiply
    60,498.36x = 90,757.22 × 21,066.68
  4. Step 4: Simplify right side
    60,498.36x = 1,911,953,311.43
  5. Step 5: Solve for x
    x = 1,911,953,311.43/60,498.36
  6. Step 6: Final answer
    x = 31,603.39

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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.