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Finding the Fourth Proportional to 30,916.73, 46,342.72 and 14,287.68

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Solution

The fourth proportional to 30,916.73, 46,342.72 and 14,287.68 is: 21,416.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,916.73 : 46,342.72 = 14,287.68 : x
  2. Step 2: Convert to fraction form
    30,916.73/46,342.72 = 14,287.68/x
  3. Step 3: Cross multiply
    30,916.73x = 46,342.72 × 14,287.68
  4. Step 4: Simplify right side
    30,916.73x = 662,129,953.69
  5. Step 5: Solve for x
    x = 662,129,953.69/30,916.73
  6. Step 6: Final answer
    x = 21,416.56

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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.