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Finding the Fourth Proportional to 57,894.96, 79,897.32 and 37,765.20

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Solution

The fourth proportional to 57,894.96, 79,897.32 and 37,765.20 is: 52,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,894.96 : 79,897.32 = 37,765.20 : x
  2. Step 2: Convert to fraction form
    57,894.96/79,897.32 = 37,765.20/x
  3. Step 3: Cross multiply
    57,894.96x = 79,897.32 × 37,765.20
  4. Step 4: Simplify right side
    57,894.96x = 3,017,338,269.26
  5. Step 5: Solve for x
    x = 3,017,338,269.26/57,894.96
  6. Step 6: Final answer
    x = 52,117.46

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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.