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Finding the Fourth Proportional to 61,641.64, 85,066.05 and 33,347.92

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Solution

The fourth proportional to 61,641.64, 85,066.05 and 33,347.92 is: 46,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,641.64 : 85,066.05 = 33,347.92 : x
  2. Step 2: Convert to fraction form
    61,641.64/85,066.05 = 33,347.92/x
  3. Step 3: Cross multiply
    61,641.64x = 85,066.05 × 33,347.92
  4. Step 4: Simplify right side
    61,641.64x = 2,836,775,830.12
  5. Step 5: Solve for x
    x = 2,836,775,830.12/61,641.64
  6. Step 6: Final answer
    x = 46,020.45

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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.