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Finding the Fourth Proportional to 7,581.02, 11,360.79 and 5,705.66

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Solution

The fourth proportional to 7,581.02, 11,360.79 and 5,705.66 is: 8,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.02 : 11,360.79 = 5,705.66 : x
  2. Step 2: Convert to fraction form
    7,581.02/11,360.79 = 5,705.66/x
  3. Step 3: Cross multiply
    7,581.02x = 11,360.79 × 5,705.66
  4. Step 4: Simplify right side
    7,581.02x = 64,820,748.27
  5. Step 5: Solve for x
    x = 64,820,748.27/7,581.02
  6. Step 6: Final answer
    x = 8,550.40

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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.