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Finding the Fourth Proportional to 53,283.57, 79,822.77 and 33,300.87

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Solution

The fourth proportional to 53,283.57, 79,822.77 and 33,300.87 is: 49,887.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,283.57 : 79,822.77 = 33,300.87 : x
  2. Step 2: Convert to fraction form
    53,283.57/79,822.77 = 33,300.87/x
  3. Step 3: Cross multiply
    53,283.57x = 79,822.77 × 33,300.87
  4. Step 4: Simplify right side
    53,283.57x = 2,658,167,686.81
  5. Step 5: Solve for x
    x = 2,658,167,686.81/53,283.57
  6. Step 6: Final answer
    x = 49,887.19

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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.