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Finding the Fourth Proportional to 13,059.69, 18,031.74 and 8,030.67

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Solution

The fourth proportional to 13,059.69, 18,031.74 and 8,030.67 is: 11,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,059.69 : 18,031.74 = 8,030.67 : x
  2. Step 2: Convert to fraction form
    13,059.69/18,031.74 = 8,030.67/x
  3. Step 3: Cross multiply
    13,059.69x = 18,031.74 × 8,030.67
  4. Step 4: Simplify right side
    13,059.69x = 144,806,953.47
  5. Step 5: Solve for x
    x = 144,806,953.47/13,059.69
  6. Step 6: Final answer
    x = 11,088.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.