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Finding the Fourth Proportional to 67,221.85, 92,762.79 and 37,006.40

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Solution

The fourth proportional to 67,221.85, 92,762.79 and 37,006.40 is: 51,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,221.85 : 92,762.79 = 37,006.40 : x
  2. Step 2: Convert to fraction form
    67,221.85/92,762.79 = 37,006.40/x
  3. Step 3: Cross multiply
    67,221.85x = 92,762.79 × 37,006.40
  4. Step 4: Simplify right side
    67,221.85x = 3,432,816,911.86
  5. Step 5: Solve for x
    x = 3,432,816,911.86/67,221.85
  6. Step 6: Final answer
    x = 51,066.98

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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.