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Finding the Fourth Proportional to 53,266.79, 79,893.10 and 15,826.16

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Solution

The fourth proportional to 53,266.79, 79,893.10 and 15,826.16 is: 23,737.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,266.79 : 79,893.10 = 15,826.16 : x
  2. Step 2: Convert to fraction form
    53,266.79/79,893.10 = 15,826.16/x
  3. Step 3: Cross multiply
    53,266.79x = 79,893.10 × 15,826.16
  4. Step 4: Simplify right side
    53,266.79x = 1,264,400,983.50
  5. Step 5: Solve for x
    x = 1,264,400,983.50/53,266.79
  6. Step 6: Final answer
    x = 23,737.13

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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.