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Finding the Fourth Proportional to 47,292.81, 70,948.94 and 19,590.81

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Solution

The fourth proportional to 47,292.81, 70,948.94 and 19,590.81 is: 29,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,292.81 : 70,948.94 = 19,590.81 : x
  2. Step 2: Convert to fraction form
    47,292.81/70,948.94 = 19,590.81/x
  3. Step 3: Cross multiply
    47,292.81x = 70,948.94 × 19,590.81
  4. Step 4: Simplify right side
    47,292.81x = 1,389,947,105.29
  5. Step 5: Solve for x
    x = 1,389,947,105.29/47,292.81
  6. Step 6: Final answer
    x = 29,390.24

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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.