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Finding the Fourth Proportional to 67,200.87, 92,698.62 and 42,006.63

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Solution

The fourth proportional to 67,200.87, 92,698.62 and 42,006.63 is: 57,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,200.87 : 92,698.62 = 42,006.63 : x
  2. Step 2: Convert to fraction form
    67,200.87/92,698.62 = 42,006.63/x
  3. Step 3: Cross multiply
    67,200.87x = 92,698.62 × 42,006.63
  4. Step 4: Simplify right side
    67,200.87x = 3,893,956,631.85
  5. Step 5: Solve for x
    x = 3,893,956,631.85/67,200.87
  6. Step 6: Final answer
    x = 57,945.03

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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.