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Finding the Fourth Proportional to 46,174.80, 69,265.80 and 19,880.40

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Solution

The fourth proportional to 46,174.80, 69,265.80 and 19,880.40 is: 29,822.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,174.80 : 69,265.80 = 19,880.40 : x
  2. Step 2: Convert to fraction form
    46,174.80/69,265.80 = 19,880.40/x
  3. Step 3: Cross multiply
    46,174.80x = 69,265.80 × 19,880.40
  4. Step 4: Simplify right side
    46,174.80x = 1,377,031,810.32
  5. Step 5: Solve for x
    x = 1,377,031,810.32/46,174.80
  6. Step 6: Final answer
    x = 29,822.15

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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.