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Finding the Fourth Proportional to 53,672.20, 74,064.21 and 29,798.87

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Solution

The fourth proportional to 53,672.20, 74,064.21 and 29,798.87 is: 41,120.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,672.20 : 74,064.21 = 29,798.87 : x
  2. Step 2: Convert to fraction form
    53,672.20/74,064.21 = 29,798.87/x
  3. Step 3: Cross multiply
    53,672.20x = 74,064.21 × 29,798.87
  4. Step 4: Simplify right side
    53,672.20x = 2,207,029,283.38
  5. Step 5: Solve for x
    x = 2,207,029,283.38/53,672.20
  6. Step 6: Final answer
    x = 41,120.53

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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.