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Finding the Fourth Proportional to 61,269.96, 84,570.88 and 35,783.20

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Solution

The fourth proportional to 61,269.96, 84,570.88 and 35,783.20 is: 49,391.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,269.96 : 84,570.88 = 35,783.20 : x
  2. Step 2: Convert to fraction form
    61,269.96/84,570.88 = 35,783.20/x
  3. Step 3: Cross multiply
    61,269.96x = 84,570.88 × 35,783.20
  4. Step 4: Simplify right side
    61,269.96x = 3,026,216,713.22
  5. Step 5: Solve for x
    x = 3,026,216,713.22/61,269.96
  6. Step 6: Final answer
    x = 49,391.52

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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.