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Finding the Fourth Proportional to 57,890.62, 79,889.79 and 34,017.76

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Solution

The fourth proportional to 57,890.62, 79,889.79 and 34,017.76 is: 46,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,890.62 : 79,889.79 = 34,017.76 : x
  2. Step 2: Convert to fraction form
    57,890.62/79,889.79 = 34,017.76/x
  3. Step 3: Cross multiply
    57,890.62x = 79,889.79 × 34,017.76
  4. Step 4: Simplify right side
    57,890.62x = 2,717,671,702.67
  5. Step 5: Solve for x
    x = 2,717,671,702.67/57,890.62
  6. Step 6: Final answer
    x = 46,944.94

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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.