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Finding the Fourth Proportional to 19,000.90, 26,620.70 and 19,000.90

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Solution

The fourth proportional to 19,000.90, 26,620.70 and 19,000.90 is: 26,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.90 : 26,620.70 = 19,000.90 : x
  2. Step 2: Convert to fraction form
    19,000.90/26,620.70 = 19,000.90/x
  3. Step 3: Cross multiply
    19,000.90x = 26,620.70 × 19,000.90
  4. Step 4: Simplify right side
    19,000.90x = 505,817,258.63
  5. Step 5: Solve for x
    x = 505,817,258.63/19,000.90
  6. Step 6: Final answer
    x = 26,620.70

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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.