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Finding the Fourth Proportional to 14,310.15, 19,748.52 and 8,340.87

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Solution

The fourth proportional to 14,310.15, 19,748.52 and 8,340.87 is: 11,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,310.15 : 19,748.52 = 8,340.87 : x
  2. Step 2: Convert to fraction form
    14,310.15/19,748.52 = 8,340.87/x
  3. Step 3: Cross multiply
    14,310.15x = 19,748.52 × 8,340.87
  4. Step 4: Simplify right side
    14,310.15x = 164,719,838.01
  5. Step 5: Solve for x
    x = 164,719,838.01/14,310.15
  6. Step 6: Final answer
    x = 11,510.70

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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.