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Finding the Fourth Proportional to 19,595.50, 27,049.54 and 13,630.63

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Solution

The fourth proportional to 19,595.50, 27,049.54 and 13,630.63 is: 18,815.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,595.50 : 27,049.54 = 13,630.63 : x
  2. Step 2: Convert to fraction form
    19,595.50/27,049.54 = 13,630.63/x
  3. Step 3: Cross multiply
    19,595.50x = 27,049.54 × 13,630.63
  4. Step 4: Simplify right side
    19,595.50x = 368,702,271.41
  5. Step 5: Solve for x
    x = 368,702,271.41/19,595.50
  6. Step 6: Final answer
    x = 18,815.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.