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Finding the Fourth Proportional to 8,676.09, 11,973.01 and 4,697.20

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Solution

The fourth proportional to 8,676.09, 11,973.01 and 4,697.20 is: 6,482.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.09 : 11,973.01 = 4,697.20 : x
  2. Step 2: Convert to fraction form
    8,676.09/11,973.01 = 4,697.20/x
  3. Step 3: Cross multiply
    8,676.09x = 11,973.01 × 4,697.20
  4. Step 4: Simplify right side
    8,676.09x = 56,239,599.09
  5. Step 5: Solve for x
    x = 56,239,599.09/8,676.09
  6. Step 6: Final answer
    x = 6,482.14

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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.