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Finding the Fourth Proportional to 61,991.60, 85,547.40 and 33,698

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Solution

The fourth proportional to 61,991.60, 85,547.40 and 33,698 is: 46,502.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,991.60 : 85,547.40 = 33,698 : x
  2. Step 2: Convert to fraction form
    61,991.60/85,547.40 = 33,698/x
  3. Step 3: Cross multiply
    61,991.60x = 85,547.40 × 33,698
  4. Step 4: Simplify right side
    61,991.60x = 2,882,776,285.20
  5. Step 5: Solve for x
    x = 2,882,776,285.20/61,991.60
  6. Step 6: Final answer
    x = 46,502.69

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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.