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Finding the Fourth Proportional to 19,214.61, 26,518.76 and 11,260

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Solution

The fourth proportional to 19,214.61, 26,518.76 and 11,260 is: 15,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,214.61 : 26,518.76 = 11,260 : x
  2. Step 2: Convert to fraction form
    19,214.61/26,518.76 = 11,260/x
  3. Step 3: Cross multiply
    19,214.61x = 26,518.76 × 11,260
  4. Step 4: Simplify right side
    19,214.61x = 298,601,237.60
  5. Step 5: Solve for x
    x = 298,601,237.60/19,214.61
  6. Step 6: Final answer
    x = 15,540.32

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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.