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Finding the Fourth Proportional to 5,329.08, 7,940.04 and 5,031

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Solution

The fourth proportional to 5,329.08, 7,940.04 and 5,031 is: 7,495.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.08 : 7,940.04 = 5,031 : x
  2. Step 2: Convert to fraction form
    5,329.08/7,940.04 = 5,031/x
  3. Step 3: Cross multiply
    5,329.08x = 7,940.04 × 5,031
  4. Step 4: Simplify right side
    5,329.08x = 39,946,341.24
  5. Step 5: Solve for x
    x = 39,946,341.24/5,329.08
  6. Step 6: Final answer
    x = 7,495.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.