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Finding the Fourth Proportional to 11,802.68, 17,687.50 and 8,877.56

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Solution

The fourth proportional to 11,802.68, 17,687.50 and 8,877.56 is: 13,303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,802.68 : 17,687.50 = 8,877.56 : x
  2. Step 2: Convert to fraction form
    11,802.68/17,687.50 = 8,877.56/x
  3. Step 3: Cross multiply
    11,802.68x = 17,687.50 × 8,877.56
  4. Step 4: Simplify right side
    11,802.68x = 157,021,842.50
  5. Step 5: Solve for x
    x = 157,021,842.50/11,802.68
  6. Step 6: Final answer
    x = 13,303.91

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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.