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Finding the Fourth Proportional to 10,797.63, 14,919.98 and 8,457.54

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Solution

The fourth proportional to 10,797.63, 14,919.98 and 8,457.54 is: 11,686.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,797.63 : 14,919.98 = 8,457.54 : x
  2. Step 2: Convert to fraction form
    10,797.63/14,919.98 = 8,457.54/x
  3. Step 3: Cross multiply
    10,797.63x = 14,919.98 × 8,457.54
  4. Step 4: Simplify right side
    10,797.63x = 126,186,285.36
  5. Step 5: Solve for x
    x = 126,186,285.36/10,797.63
  6. Step 6: Final answer
    x = 11,686.48

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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.