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Finding the Fourth Proportional to 62,312, 85,986.54 and 34,017.68

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Solution

The fourth proportional to 62,312, 85,986.54 and 34,017.68 is: 46,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,312 : 85,986.54 = 34,017.68 : x
  2. Step 2: Convert to fraction form
    62,312/85,986.54 = 34,017.68/x
  3. Step 3: Cross multiply
    62,312x = 85,986.54 × 34,017.68
  4. Step 4: Simplify right side
    62,312x = 2,925,062,602.03
  5. Step 5: Solve for x
    x = 2,925,062,602.03/62,312
  6. Step 6: Final answer
    x = 46,942.20

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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.