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Finding the Fourth Proportional to 66,700.87, 99,940.23 and 46,937.92

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Solution

The fourth proportional to 66,700.87, 99,940.23 and 46,937.92 is: 70,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,700.87 : 99,940.23 = 46,937.92 : x
  2. Step 2: Convert to fraction form
    66,700.87/99,940.23 = 46,937.92/x
  3. Step 3: Cross multiply
    66,700.87x = 99,940.23 × 46,937.92
  4. Step 4: Simplify right side
    66,700.87x = 4,690,986,520.52
  5. Step 5: Solve for x
    x = 4,690,986,520.52/66,700.87
  6. Step 6: Final answer
    x = 70,328.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.