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Finding the Fourth Proportional to 8,010.32, 11,980.44 and 4,881.68

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Solution

The fourth proportional to 8,010.32, 11,980.44 and 4,881.68 is: 7,301.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,010.32 : 11,980.44 = 4,881.68 : x
  2. Step 2: Convert to fraction form
    8,010.32/11,980.44 = 4,881.68/x
  3. Step 3: Cross multiply
    8,010.32x = 11,980.44 × 4,881.68
  4. Step 4: Simplify right side
    8,010.32x = 58,484,674.34
  5. Step 5: Solve for x
    x = 58,484,674.34/8,010.32
  6. Step 6: Final answer
    x = 7,301.17

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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.