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Finding the Fourth Proportional to 47,287.08, 70,930.62 and 19,207.08

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Solution

The fourth proportional to 47,287.08, 70,930.62 and 19,207.08 is: 28,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,287.08 : 70,930.62 = 19,207.08 : x
  2. Step 2: Convert to fraction form
    47,287.08/70,930.62 = 19,207.08/x
  3. Step 3: Cross multiply
    47,287.08x = 70,930.62 × 19,207.08
  4. Step 4: Simplify right side
    47,287.08x = 1,362,370,092.79
  5. Step 5: Solve for x
    x = 1,362,370,092.79/47,287.08
  6. Step 6: Final answer
    x = 28,810.62

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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.