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Finding the Fourth Proportional to 16,710.78, 25,065.24 and 5,616.32

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Solution

The fourth proportional to 16,710.78, 25,065.24 and 5,616.32 is: 8,424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,710.78 : 25,065.24 = 5,616.32 : x
  2. Step 2: Convert to fraction form
    16,710.78/25,065.24 = 5,616.32/x
  3. Step 3: Cross multiply
    16,710.78x = 25,065.24 × 5,616.32
  4. Step 4: Simplify right side
    16,710.78x = 140,774,346.05
  5. Step 5: Solve for x
    x = 140,774,346.05/16,710.78
  6. Step 6: Final answer
    x = 8,424.17

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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.