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Finding the Fourth Proportional to 13,070.19, 18,031.95 and 8,030.37

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Solution

The fourth proportional to 13,070.19, 18,031.95 and 8,030.37 is: 11,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.19 : 18,031.95 = 8,030.37 : x
  2. Step 2: Convert to fraction form
    13,070.19/18,031.95 = 8,030.37/x
  3. Step 3: Cross multiply
    13,070.19x = 18,031.95 × 8,030.37
  4. Step 4: Simplify right side
    13,070.19x = 144,803,230.32
  5. Step 5: Solve for x
    x = 144,803,230.32/13,070.19
  6. Step 6: Final answer
    x = 11,078.89

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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.