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Finding the Fourth Proportional to 19,173.70, 28,606.54 and 17,068.71

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Solution

The fourth proportional to 19,173.70, 28,606.54 and 17,068.71 is: 25,465.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.70 : 28,606.54 = 17,068.71 : x
  2. Step 2: Convert to fraction form
    19,173.70/28,606.54 = 17,068.71/x
  3. Step 3: Cross multiply
    19,173.70x = 28,606.54 × 17,068.71
  4. Step 4: Simplify right side
    19,173.70x = 488,276,735.36
  5. Step 5: Solve for x
    x = 488,276,735.36/19,173.70
  6. Step 6: Final answer
    x = 25,465.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.