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Finding the Fourth Proportional to 16,293.61, 22,485.65 and 9,219.88

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Solution

The fourth proportional to 16,293.61, 22,485.65 and 9,219.88 is: 12,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,293.61 : 22,485.65 = 9,219.88 : x
  2. Step 2: Convert to fraction form
    16,293.61/22,485.65 = 9,219.88/x
  3. Step 3: Cross multiply
    16,293.61x = 22,485.65 × 9,219.88
  4. Step 4: Simplify right side
    16,293.61x = 207,314,994.72
  5. Step 5: Solve for x
    x = 207,314,994.72/16,293.61
  6. Step 6: Final answer
    x = 12,723.70

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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.