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Finding the Fourth Proportional to 13,039.17, 19,509.54 and 7,495.12

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Solution

The fourth proportional to 13,039.17, 19,509.54 and 7,495.12 is: 11,214.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.17 : 19,509.54 = 7,495.12 : x
  2. Step 2: Convert to fraction form
    13,039.17/19,509.54 = 7,495.12/x
  3. Step 3: Cross multiply
    13,039.17x = 19,509.54 × 7,495.12
  4. Step 4: Simplify right side
    13,039.17x = 146,226,343.44
  5. Step 5: Solve for x
    x = 146,226,343.44/13,039.17
  6. Step 6: Final answer
    x = 11,214.39

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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.