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Finding the Fourth Proportional to 66,828.96, 92,220.48 and 36,608.70

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Solution

The fourth proportional to 66,828.96, 92,220.48 and 36,608.70 is: 50,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,828.96 : 92,220.48 = 36,608.70 : x
  2. Step 2: Convert to fraction form
    66,828.96/92,220.48 = 36,608.70/x
  3. Step 3: Cross multiply
    66,828.96x = 92,220.48 × 36,608.70
  4. Step 4: Simplify right side
    66,828.96x = 3,376,071,886.18
  5. Step 5: Solve for x
    x = 3,376,071,886.18/66,828.96
  6. Step 6: Final answer
    x = 50,518.10

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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.