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Finding the Fourth Proportional to 27,312.59, 40,955.18 and 13,263.81

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Solution

The fourth proportional to 27,312.59, 40,955.18 and 13,263.81 is: 19,889.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312.59 : 40,955.18 = 13,263.81 : x
  2. Step 2: Convert to fraction form
    27,312.59/40,955.18 = 13,263.81/x
  3. Step 3: Cross multiply
    27,312.59x = 40,955.18 × 13,263.81
  4. Step 4: Simplify right side
    27,312.59x = 543,221,659.72
  5. Step 5: Solve for x
    x = 543,221,659.72/27,312.59
  6. Step 6: Final answer
    x = 19,889.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.