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Finding the Fourth Proportional to 19,483, 26,886.54 and 11,099.50

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Solution

The fourth proportional to 19,483, 26,886.54 and 11,099.50 is: 15,317.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483 : 26,886.54 = 11,099.50 : x
  2. Step 2: Convert to fraction form
    19,483/26,886.54 = 11,099.50/x
  3. Step 3: Cross multiply
    19,483x = 26,886.54 × 11,099.50
  4. Step 4: Simplify right side
    19,483x = 298,427,150.73
  5. Step 5: Solve for x
    x = 298,427,150.73/19,483
  6. Step 6: Final answer
    x = 15,317.31

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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.