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Finding the Fourth Proportional to 16,676.78, 25,015.14 and 4,364.78

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Solution

The fourth proportional to 16,676.78, 25,015.14 and 4,364.78 is: 6,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,676.78 : 25,015.14 = 4,364.78 : x
  2. Step 2: Convert to fraction form
    16,676.78/25,015.14 = 4,364.78/x
  3. Step 3: Cross multiply
    16,676.78x = 25,015.14 × 4,364.78
  4. Step 4: Simplify right side
    16,676.78x = 109,185,582.77
  5. Step 5: Solve for x
    x = 109,185,582.77/16,676.78
  6. Step 6: Final answer
    x = 6,547.16

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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.