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Finding the Fourth Proportional to 53,243.84, 79,837.76 and 15,798.72

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Solution

The fourth proportional to 53,243.84, 79,837.76 and 15,798.72 is: 23,689.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,243.84 : 79,837.76 = 15,798.72 : x
  2. Step 2: Convert to fraction form
    53,243.84/79,837.76 = 15,798.72/x
  3. Step 3: Cross multiply
    53,243.84x = 79,837.76 × 15,798.72
  4. Step 4: Simplify right side
    53,243.84x = 1,261,334,415.67
  5. Step 5: Solve for x
    x = 1,261,334,415.67/53,243.84
  6. Step 6: Final answer
    x = 23,689.77

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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.