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Finding the Fourth Proportional to 12,714.16, 19,057.08 and 4,916.56

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Solution

The fourth proportional to 12,714.16, 19,057.08 and 4,916.56 is: 7,369.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,714.16 : 19,057.08 = 4,916.56 : x
  2. Step 2: Convert to fraction form
    12,714.16/19,057.08 = 4,916.56/x
  3. Step 3: Cross multiply
    12,714.16x = 19,057.08 × 4,916.56
  4. Step 4: Simplify right side
    12,714.16x = 93,695,277.24
  5. Step 5: Solve for x
    x = 93,695,277.24/12,714.16
  6. Step 6: Final answer
    x = 7,369.36

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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.