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Finding the Fourth Proportional to 19,247.40, 26,998.20 and 19,247.40

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Solution

The fourth proportional to 19,247.40, 26,998.20 and 19,247.40 is: 26,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,247.40 : 26,998.20 = 19,247.40 : x
  2. Step 2: Convert to fraction form
    19,247.40/26,998.20 = 19,247.40/x
  3. Step 3: Cross multiply
    19,247.40x = 26,998.20 × 19,247.40
  4. Step 4: Simplify right side
    19,247.40x = 519,645,154.68
  5. Step 5: Solve for x
    x = 519,645,154.68/19,247.40
  6. Step 6: Final answer
    x = 26,998.20

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.