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Finding the Fourth Proportional to 57,646.86, 79,572.51 and 33,781.26

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Solution

The fourth proportional to 57,646.86, 79,572.51 and 33,781.26 is: 46,629.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,646.86 : 79,572.51 = 33,781.26 : x
  2. Step 2: Convert to fraction form
    57,646.86/79,572.51 = 33,781.26/x
  3. Step 3: Cross multiply
    57,646.86x = 79,572.51 × 33,781.26
  4. Step 4: Simplify right side
    57,646.86x = 2,688,059,649.16
  5. Step 5: Solve for x
    x = 2,688,059,649.16/57,646.86
  6. Step 6: Final answer
    x = 46,629.77

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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.