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Finding the Fourth Proportional to 9,879.51, 14,817.63 and 4,615.07

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Solution

The fourth proportional to 9,879.51, 14,817.63 and 4,615.07 is: 6,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.51 : 14,817.63 = 4,615.07 : x
  2. Step 2: Convert to fraction form
    9,879.51/14,817.63 = 4,615.07/x
  3. Step 3: Cross multiply
    9,879.51x = 14,817.63 × 4,615.07
  4. Step 4: Simplify right side
    9,879.51x = 68,384,325.60
  5. Step 5: Solve for x
    x = 68,384,325.60/9,879.51
  6. Step 6: Final answer
    x = 6,921.83

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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.