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Finding the Fourth Proportional to 61,990.82, 85,547.63 and 33,696.50

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Solution

The fourth proportional to 61,990.82, 85,547.63 and 33,696.50 is: 46,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990.82 : 85,547.63 = 33,696.50 : x
  2. Step 2: Convert to fraction form
    61,990.82/85,547.63 = 33,696.50/x
  3. Step 3: Cross multiply
    61,990.82x = 85,547.63 × 33,696.50
  4. Step 4: Simplify right side
    61,990.82x = 2,882,655,545.81
  5. Step 5: Solve for x
    x = 2,882,655,545.81/61,990.82
  6. Step 6: Final answer
    x = 46,501.33

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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.