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Finding the Fourth Proportional to 14,115.52, 19,469.60 and 13,652.16

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Solution

The fourth proportional to 14,115.52, 19,469.60 and 13,652.16 is: 18,830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.52 : 19,469.60 = 13,652.16 : x
  2. Step 2: Convert to fraction form
    14,115.52/19,469.60 = 13,652.16/x
  3. Step 3: Cross multiply
    14,115.52x = 19,469.60 × 13,652.16
  4. Step 4: Simplify right side
    14,115.52x = 265,802,094.34
  5. Step 5: Solve for x
    x = 265,802,094.34/14,115.52
  6. Step 6: Final answer
    x = 18,830.49

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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.