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Finding the Fourth Proportional to 66,919.20, 92,354.42 and 36,710.41

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Solution

The fourth proportional to 66,919.20, 92,354.42 and 36,710.41 is: 50,663.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,919.20 : 92,354.42 = 36,710.41 : x
  2. Step 2: Convert to fraction form
    66,919.20/92,354.42 = 36,710.41/x
  3. Step 3: Cross multiply
    66,919.20x = 92,354.42 × 36,710.41
  4. Step 4: Simplify right side
    66,919.20x = 3,390,368,623.51
  5. Step 5: Solve for x
    x = 3,390,368,623.51/66,919.20
  6. Step 6: Final answer
    x = 50,663.62

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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.