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Finding the Fourth Proportional to 66,928.90, 92,363.12 and 36,715.77

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Solution

The fourth proportional to 66,928.90, 92,363.12 and 36,715.77 is: 50,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928.90 : 92,363.12 = 36,715.77 : x
  2. Step 2: Convert to fraction form
    66,928.90/92,363.12 = 36,715.77/x
  3. Step 3: Cross multiply
    66,928.90x = 92,363.12 × 36,715.77
  4. Step 4: Simplify right side
    66,928.90x = 3,391,183,070.40
  5. Step 5: Solve for x
    x = 3,391,183,070.40/66,928.90
  6. Step 6: Final answer
    x = 50,668.44

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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.