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Finding the Fourth Proportional to 53,886.72, 80,860.80 and 18,852.48

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Solution

The fourth proportional to 53,886.72, 80,860.80 and 18,852.48 is: 28,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,886.72 : 80,860.80 = 18,852.48 : x
  2. Step 2: Convert to fraction form
    53,886.72/80,860.80 = 18,852.48/x
  3. Step 3: Cross multiply
    53,886.72x = 80,860.80 × 18,852.48
  4. Step 4: Simplify right side
    53,886.72x = 1,524,426,614.78
  5. Step 5: Solve for x
    x = 1,524,426,614.78/53,886.72
  6. Step 6: Final answer
    x = 28,289.47

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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.