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Finding the Fourth Proportional to 53,785.65, 74,218.51 and 29,908.47

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Solution

The fourth proportional to 53,785.65, 74,218.51 and 29,908.47 is: 41,270.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,785.65 : 74,218.51 = 29,908.47 : x
  2. Step 2: Convert to fraction form
    53,785.65/74,218.51 = 29,908.47/x
  3. Step 3: Cross multiply
    53,785.65x = 74,218.51 × 29,908.47
  4. Step 4: Simplify right side
    53,785.65x = 2,219,762,079.78
  5. Step 5: Solve for x
    x = 2,219,762,079.78/53,785.65
  6. Step 6: Final answer
    x = 41,270.53

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