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Finding the Fourth Proportional to 14,096.70, 21,145.05 and 11,792.70

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Solution

The fourth proportional to 14,096.70, 21,145.05 and 11,792.70 is: 17,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,096.70 : 21,145.05 = 11,792.70 : x
  2. Step 2: Convert to fraction form
    14,096.70/21,145.05 = 11,792.70/x
  3. Step 3: Cross multiply
    14,096.70x = 21,145.05 × 11,792.70
  4. Step 4: Simplify right side
    14,096.70x = 249,357,231.14
  5. Step 5: Solve for x
    x = 249,357,231.14/14,096.70
  6. Step 6: Final answer
    x = 17,689.05

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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.