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Finding the Fourth Proportional to 66,988.99, 92,442.41 and 37,916.73

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Solution

The fourth proportional to 66,988.99, 92,442.41 and 37,916.73 is: 52,323.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988.99 : 92,442.41 = 37,916.73 : x
  2. Step 2: Convert to fraction form
    66,988.99/92,442.41 = 37,916.73/x
  3. Step 3: Cross multiply
    66,988.99x = 92,442.41 × 37,916.73
  4. Step 4: Simplify right side
    66,988.99x = 3,505,113,900.52
  5. Step 5: Solve for x
    x = 3,505,113,900.52/66,988.99
  6. Step 6: Final answer
    x = 52,323.73

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1.5x scale

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.