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Finding the Fourth Proportional to 7,898.03, 11,837.81 and 4,386.35

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Solution

The fourth proportional to 7,898.03, 11,837.81 and 4,386.35 is: 6,574.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.03 : 11,837.81 = 4,386.35 : x
  2. Step 2: Convert to fraction form
    7,898.03/11,837.81 = 4,386.35/x
  3. Step 3: Cross multiply
    7,898.03x = 11,837.81 × 4,386.35
  4. Step 4: Simplify right side
    7,898.03x = 51,924,696.77
  5. Step 5: Solve for x
    x = 51,924,696.77/7,898.03
  6. Step 6: Final answer
    x = 6,574.39

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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.