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Finding the Fourth Proportional to 61,846.88, 85,348.71 and 34,988.81

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Solution

The fourth proportional to 61,846.88, 85,348.71 and 34,988.81 is: 48,284.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,846.88 : 85,348.71 = 34,988.81 : x
  2. Step 2: Convert to fraction form
    61,846.88/85,348.71 = 34,988.81/x
  3. Step 3: Cross multiply
    61,846.88x = 85,348.71 × 34,988.81
  4. Step 4: Simplify right side
    61,846.88x = 2,986,249,371.19
  5. Step 5: Solve for x
    x = 2,986,249,371.19/61,846.88
  6. Step 6: Final answer
    x = 48,284.56

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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.