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Finding the Fourth Proportional to 9,879.66, 14,806.86 and 4,331.52

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Solution

The fourth proportional to 9,879.66, 14,806.86 and 4,331.52 is: 6,491.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.66 : 14,806.86 = 4,331.52 : x
  2. Step 2: Convert to fraction form
    9,879.66/14,806.86 = 4,331.52/x
  3. Step 3: Cross multiply
    9,879.66x = 14,806.86 × 4,331.52
  4. Step 4: Simplify right side
    9,879.66x = 64,136,210.23
  5. Step 5: Solve for x
    x = 64,136,210.23/9,879.66
  6. Step 6: Final answer
    x = 6,491.74

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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.