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Finding the Fourth Proportional to 64,801.61, 89,428.11 and 37,941.60

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Solution

The fourth proportional to 64,801.61, 89,428.11 and 37,941.60 is: 52,360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,801.61 : 89,428.11 = 37,941.60 : x
  2. Step 2: Convert to fraction form
    64,801.61/89,428.11 = 37,941.60/x
  3. Step 3: Cross multiply
    64,801.61x = 89,428.11 × 37,941.60
  4. Step 4: Simplify right side
    64,801.61x = 3,393,045,578.38
  5. Step 5: Solve for x
    x = 3,393,045,578.38/64,801.61
  6. Step 6: Final answer
    x = 52,360.51

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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.