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Finding the Fourth Proportional to 53,292.94, 79,939.71 and 22,128.19

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Solution

The fourth proportional to 53,292.94, 79,939.71 and 22,128.19 is: 33,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,292.94 : 79,939.71 = 22,128.19 : x
  2. Step 2: Convert to fraction form
    53,292.94/79,939.71 = 22,128.19/x
  3. Step 3: Cross multiply
    53,292.94x = 79,939.71 × 22,128.19
  4. Step 4: Simplify right side
    53,292.94x = 1,768,920,891.58
  5. Step 5: Solve for x
    x = 1,768,920,891.58/53,292.94
  6. Step 6: Final answer
    x = 33,192.41

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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.