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Finding the Fourth Proportional to 19,592.00, 27,043.10 and 12,518.40

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Solution

The fourth proportional to 19,592.00, 27,043.10 and 12,518.40 is: 17,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,592.00 : 27,043.10 = 12,518.40 : x
  2. Step 2: Convert to fraction form
    19,592.00/27,043.10 = 12,518.40/x
  3. Step 3: Cross multiply
    19,592.00x = 27,043.10 × 12,518.40
  4. Step 4: Simplify right side
    19,592.00x = 338,536,348.06
  5. Step 5: Solve for x
    x = 338,536,348.06/19,592.00
  6. Step 6: Final answer
    x = 17,279.32

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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.