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Finding the Fourth Proportional to 34,371.60, 47,431.50 and 19,264.40

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Solution

The fourth proportional to 34,371.60, 47,431.50 and 19,264.40 is: 26,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,371.60 : 47,431.50 = 19,264.40 : x
  2. Step 2: Convert to fraction form
    34,371.60/47,431.50 = 19,264.40/x
  3. Step 3: Cross multiply
    34,371.60x = 47,431.50 × 19,264.40
  4. Step 4: Simplify right side
    34,371.60x = 913,739,151.44
  5. Step 5: Solve for x
    x = 913,739,151.44/34,371.60
  6. Step 6: Final answer
    x = 26,584.13

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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.