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Finding the Fourth Proportional to 64,862.91, 89,510.67 and 36,568.40

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Solution

The fourth proportional to 64,862.91, 89,510.67 and 36,568.40 is: 50,464.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,862.91 : 89,510.67 = 36,568.40 : x
  2. Step 2: Convert to fraction form
    64,862.91/89,510.67 = 36,568.40/x
  3. Step 3: Cross multiply
    64,862.91x = 89,510.67 × 36,568.40
  4. Step 4: Simplify right side
    64,862.91x = 3,273,261,537.27
  5. Step 5: Solve for x
    x = 3,273,261,537.27/64,862.91
  6. Step 6: Final answer
    x = 50,464.30

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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.