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Finding the Fourth Proportional to 53,912.92, 74,390.82 and 30,038.92

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Solution

The fourth proportional to 53,912.92, 74,390.82 and 30,038.92 is: 41,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,912.92 : 74,390.82 = 30,038.92 : x
  2. Step 2: Convert to fraction form
    53,912.92/74,390.82 = 30,038.92/x
  3. Step 3: Cross multiply
    53,912.92x = 74,390.82 × 30,038.92
  4. Step 4: Simplify right side
    53,912.92x = 2,234,619,890.71
  5. Step 5: Solve for x
    x = 2,234,619,890.71/53,912.92
  6. Step 6: Final answer
    x = 41,448.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.