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Finding the Fourth Proportional to 14,618.40, 21,927.60 and 11,702.40

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Solution

The fourth proportional to 14,618.40, 21,927.60 and 11,702.40 is: 17,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.40 : 21,927.60 = 11,702.40 : x
  2. Step 2: Convert to fraction form
    14,618.40/21,927.60 = 11,702.40/x
  3. Step 3: Cross multiply
    14,618.40x = 21,927.60 × 11,702.40
  4. Step 4: Simplify right side
    14,618.40x = 256,605,546.24
  5. Step 5: Solve for x
    x = 256,605,546.24/14,618.40
  6. Step 6: Final answer
    x = 17,553.60

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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.