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Finding the Fourth Proportional to 9,866.24, 14,798.94 and 5,480.90

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Solution

The fourth proportional to 9,866.24, 14,798.94 and 5,480.90 is: 8,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.24 : 14,798.94 = 5,480.90 : x
  2. Step 2: Convert to fraction form
    9,866.24/14,798.94 = 5,480.90/x
  3. Step 3: Cross multiply
    9,866.24x = 14,798.94 × 5,480.90
  4. Step 4: Simplify right side
    9,866.24x = 81,111,510.25
  5. Step 5: Solve for x
    x = 81,111,510.25/9,866.24
  6. Step 6: Final answer
    x = 8,221.12

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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.