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Finding the Fourth Proportional to 61,990.72, 85,566.51 and 36,495.02

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Solution

The fourth proportional to 61,990.72, 85,566.51 and 36,495.02 is: 50,374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990.72 : 85,566.51 = 36,495.02 : x
  2. Step 2: Convert to fraction form
    61,990.72/85,566.51 = 36,495.02/x
  3. Step 3: Cross multiply
    61,990.72x = 85,566.51 × 36,495.02
  4. Step 4: Simplify right side
    61,990.72x = 3,122,751,707.70
  5. Step 5: Solve for x
    x = 3,122,751,707.70/61,990.72
  6. Step 6: Final answer
    x = 50,374.50

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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.