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Finding the Fourth Proportional to 65,161.69, 89,577.95 and 56,053.64

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Solution

The fourth proportional to 65,161.69, 89,577.95 and 56,053.64 is: 77,057.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,161.69 : 89,577.95 = 56,053.64 : x
  2. Step 2: Convert to fraction form
    65,161.69/89,577.95 = 56,053.64/x
  3. Step 3: Cross multiply
    65,161.69x = 89,577.95 × 56,053.64
  4. Step 4: Simplify right side
    65,161.69x = 5,021,170,104.91
  5. Step 5: Solve for x
    x = 5,021,170,104.91/65,161.69
  6. Step 6: Final answer
    x = 77,057.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.