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Finding the Fourth Proportional to 26,926.71, 40,390.08 and 12,883.42

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Solution

The fourth proportional to 26,926.71, 40,390.08 and 12,883.42 is: 19,325.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,926.71 : 40,390.08 = 12,883.42 : x
  2. Step 2: Convert to fraction form
    26,926.71/40,390.08 = 12,883.42/x
  3. Step 3: Cross multiply
    26,926.71x = 40,390.08 × 12,883.42
  4. Step 4: Simplify right side
    26,926.71x = 520,362,364.47
  5. Step 5: Solve for x
    x = 520,362,364.47/26,926.71
  6. Step 6: Final answer
    x = 19,325.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.