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Finding the Fourth Proportional to 91,925.82, 126,820.89 and 57,925.26

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Solution

The fourth proportional to 91,925.82, 126,820.89 and 57,925.26 is: 79,913.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,925.82 : 126,820.89 = 57,925.26 : x
  2. Step 2: Convert to fraction form
    91,925.82/126,820.89 = 57,925.26/x
  3. Step 3: Cross multiply
    91,925.82x = 126,820.89 × 57,925.26
  4. Step 4: Simplify right side
    91,925.82x = 7,346,133,026.68
  5. Step 5: Solve for x
    x = 7,346,133,026.68/91,925.82
  6. Step 6: Final answer
    x = 79,913.71

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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.