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Finding the Fourth Proportional to 34,810.92, 48,002.74 and 20,661.02

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Solution

The fourth proportional to 34,810.92, 48,002.74 and 20,661.02 is: 28,490.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,810.92 : 48,002.74 = 20,661.02 : x
  2. Step 2: Convert to fraction form
    34,810.92/48,002.74 = 20,661.02/x
  3. Step 3: Cross multiply
    34,810.92x = 48,002.74 × 20,661.02
  4. Step 4: Simplify right side
    34,810.92x = 991,785,571.19
  5. Step 5: Solve for x
    x = 991,785,571.19/34,810.92
  6. Step 6: Final answer
    x = 28,490.65

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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.