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Finding the Fourth Proportional to 65,904.71, 90,948.04 and 35,689.34

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Solution

The fourth proportional to 65,904.71, 90,948.04 and 35,689.34 is: 49,251.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.71 : 90,948.04 = 35,689.34 : x
  2. Step 2: Convert to fraction form
    65,904.71/90,948.04 = 35,689.34/x
  3. Step 3: Cross multiply
    65,904.71x = 90,948.04 × 35,689.34
  4. Step 4: Simplify right side
    65,904.71x = 3,245,874,888.71
  5. Step 5: Solve for x
    x = 3,245,874,888.71/65,904.71
  6. Step 6: Final answer
    x = 49,251.03

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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.