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Finding the Fourth Proportional to 19,296.66, 28,956.08 and 10,411.98

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Solution

The fourth proportional to 19,296.66, 28,956.08 and 10,411.98 is: 15,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.66 : 28,956.08 = 10,411.98 : x
  2. Step 2: Convert to fraction form
    19,296.66/28,956.08 = 10,411.98/x
  3. Step 3: Cross multiply
    19,296.66x = 28,956.08 × 10,411.98
  4. Step 4: Simplify right side
    19,296.66x = 301,490,043.28
  5. Step 5: Solve for x
    x = 301,490,043.28/19,296.66
  6. Step 6: Final answer
    x = 15,623.95

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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.