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Finding the Fourth Proportional to 14,865.50, 20,515.03 and 8,896.02

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Solution

The fourth proportional to 14,865.50, 20,515.03 and 8,896.02 is: 12,276.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,865.50 : 20,515.03 = 8,896.02 : x
  2. Step 2: Convert to fraction form
    14,865.50/20,515.03 = 8,896.02/x
  3. Step 3: Cross multiply
    14,865.50x = 20,515.03 × 8,896.02
  4. Step 4: Simplify right side
    14,865.50x = 182,502,117.18
  5. Step 5: Solve for x
    x = 182,502,117.18/14,865.50
  6. Step 6: Final answer
    x = 12,276.89

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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.