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Finding the Fourth Proportional to 19,365.54, 26,735.40 and 14,819.70

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Solution

The fourth proportional to 19,365.54, 26,735.40 and 14,819.70 is: 20,459.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,365.54 : 26,735.40 = 14,819.70 : x
  2. Step 2: Convert to fraction form
    19,365.54/26,735.40 = 14,819.70/x
  3. Step 3: Cross multiply
    19,365.54x = 26,735.40 × 14,819.70
  4. Step 4: Simplify right side
    19,365.54x = 396,210,607.38
  5. Step 5: Solve for x
    x = 396,210,607.38/19,365.54
  6. Step 6: Final answer
    x = 20,459.57

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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.