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Finding the Fourth Proportional to 19,471.54, 26,785.70 and 17,070.70

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Solution

The fourth proportional to 19,471.54, 26,785.70 and 17,070.70 is: 23,483.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.54 : 26,785.70 = 17,070.70 : x
  2. Step 2: Convert to fraction form
    19,471.54/26,785.70 = 17,070.70/x
  3. Step 3: Cross multiply
    19,471.54x = 26,785.70 × 17,070.70
  4. Step 4: Simplify right side
    19,471.54x = 457,250,648.99
  5. Step 5: Solve for x
    x = 457,250,648.99/19,471.54
  6. Step 6: Final answer
    x = 23,483.02

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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.