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Finding the Fourth Proportional to 53,213.63, 79,818.21 and 13,232.63

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Solution

The fourth proportional to 53,213.63, 79,818.21 and 13,232.63 is: 19,848.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,213.63 : 79,818.21 = 13,232.63 : x
  2. Step 2: Convert to fraction form
    53,213.63/79,818.21 = 13,232.63/x
  3. Step 3: Cross multiply
    53,213.63x = 79,818.21 × 13,232.63
  4. Step 4: Simplify right side
    53,213.63x = 1,056,205,039.74
  5. Step 5: Solve for x
    x = 1,056,205,039.74/53,213.63
  6. Step 6: Final answer
    x = 19,848.39

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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.