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Finding the Fourth Proportional to 11,865.02, 16,373.72 and 6,487.48

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Solution

The fourth proportional to 11,865.02, 16,373.72 and 6,487.48 is: 8,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.02 : 16,373.72 = 6,487.48 : x
  2. Step 2: Convert to fraction form
    11,865.02/16,373.72 = 6,487.48/x
  3. Step 3: Cross multiply
    11,865.02x = 16,373.72 × 6,487.48
  4. Step 4: Simplify right side
    11,865.02x = 106,224,217.71
  5. Step 5: Solve for x
    x = 106,224,217.71/11,865.02
  6. Step 6: Final answer
    x = 8,952.72

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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.