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Finding the Fourth Proportional to 18,465.86, 27,654.64 and 10,650.98

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Solution

The fourth proportional to 18,465.86, 27,654.64 and 10,650.98 is: 15,951.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.86 : 27,654.64 = 10,650.98 : x
  2. Step 2: Convert to fraction form
    18,465.86/27,654.64 = 10,650.98/x
  3. Step 3: Cross multiply
    18,465.86x = 27,654.64 × 10,650.98
  4. Step 4: Simplify right side
    18,465.86x = 294,549,017.55
  5. Step 5: Solve for x
    x = 294,549,017.55/18,465.86
  6. Step 6: Final answer
    x = 15,951.00

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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.