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Finding the Fourth Proportional to 14,076.16, 21,115.16 and 4,717.16

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Solution

The fourth proportional to 14,076.16, 21,115.16 and 4,717.16 is: 7,076.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,076.16 : 21,115.16 = 4,717.16 : x
  2. Step 2: Convert to fraction form
    14,076.16/21,115.16 = 4,717.16/x
  3. Step 3: Cross multiply
    14,076.16x = 21,115.16 × 4,717.16
  4. Step 4: Simplify right side
    14,076.16x = 99,603,588.15
  5. Step 5: Solve for x
    x = 99,603,588.15/14,076.16
  6. Step 6: Final answer
    x = 7,076.05

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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.