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Finding the Fourth Proportional to 82,364.70, 123,510.60 and 37,968.60

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Solution

The fourth proportional to 82,364.70, 123,510.60 and 37,968.60 is: 56,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,364.70 : 123,510.60 = 37,968.60 : x
  2. Step 2: Convert to fraction form
    82,364.70/123,510.60 = 37,968.60/x
  3. Step 3: Cross multiply
    82,364.70x = 123,510.60 × 37,968.60
  4. Step 4: Simplify right side
    82,364.70x = 4,689,524,567.16
  5. Step 5: Solve for x
    x = 4,689,524,567.16/82,364.70
  6. Step 6: Final answer
    x = 56,936.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.