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Finding the Fourth Proportional to 11,977.04, 16,528.10 and 6,671.74

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Solution

The fourth proportional to 11,977.04, 16,528.10 and 6,671.74 is: 9,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.04 : 16,528.10 = 6,671.74 : x
  2. Step 2: Convert to fraction form
    11,977.04/16,528.10 = 6,671.74/x
  3. Step 3: Cross multiply
    11,977.04x = 16,528.10 × 6,671.74
  4. Step 4: Simplify right side
    11,977.04x = 110,271,226.22
  5. Step 5: Solve for x
    x = 110,271,226.22/11,977.04
  6. Step 6: Final answer
    x = 9,206.88

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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.