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Finding the Fourth Proportional to 56,328.68, 77,742.42 and 33,660.48

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Solution

The fourth proportional to 56,328.68, 77,742.42 and 33,660.48 is: 46,456.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,328.68 : 77,742.42 = 33,660.48 : x
  2. Step 2: Convert to fraction form
    56,328.68/77,742.42 = 33,660.48/x
  3. Step 3: Cross multiply
    56,328.68x = 77,742.42 × 33,660.48
  4. Step 4: Simplify right side
    56,328.68x = 2,616,847,173.56
  5. Step 5: Solve for x
    x = 2,616,847,173.56/56,328.68
  6. Step 6: Final answer
    x = 46,456.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.