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Finding the Fourth Proportional to 8,881.72, 13,330.76 and 4,502.28

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Solution

The fourth proportional to 8,881.72, 13,330.76 and 4,502.28 is: 6,757.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.72 : 13,330.76 = 4,502.28 : x
  2. Step 2: Convert to fraction form
    8,881.72/13,330.76 = 4,502.28/x
  3. Step 3: Cross multiply
    8,881.72x = 13,330.76 × 4,502.28
  4. Step 4: Simplify right side
    8,881.72x = 60,018,814.13
  5. Step 5: Solve for x
    x = 60,018,814.13/8,881.72
  6. Step 6: Final answer
    x = 6,757.57

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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.