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Finding the Fourth Proportional to 53,039.88, 79,553.88 and 13,597.92

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Solution

The fourth proportional to 53,039.88, 79,553.88 and 13,597.92 is: 20,395.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,039.88 : 79,553.88 = 13,597.92 : x
  2. Step 2: Convert to fraction form
    53,039.88/79,553.88 = 13,597.92/x
  3. Step 3: Cross multiply
    53,039.88x = 79,553.88 × 13,597.92
  4. Step 4: Simplify right side
    53,039.88x = 1,081,767,295.93
  5. Step 5: Solve for x
    x = 1,081,767,295.93/53,039.88
  6. Step 6: Final answer
    x = 20,395.36

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1.5x scale

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.