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Finding the Fourth Proportional to 8,264.55, 11,407.65 and 5,579.67

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Solution

The fourth proportional to 8,264.55, 11,407.65 and 5,579.67 is: 7,701.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,264.55 : 11,407.65 = 5,579.67 : x
  2. Step 2: Convert to fraction form
    8,264.55/11,407.65 = 5,579.67/x
  3. Step 3: Cross multiply
    8,264.55x = 11,407.65 × 5,579.67
  4. Step 4: Simplify right side
    8,264.55x = 63,650,922.48
  5. Step 5: Solve for x
    x = 63,650,922.48/8,264.55
  6. Step 6: Final answer
    x = 7,701.68

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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.