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Finding the Fourth Proportional to 19,352.87, 26,702.29 and 12,276.71

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Solution

The fourth proportional to 19,352.87, 26,702.29 and 12,276.71 is: 16,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,352.87 : 26,702.29 = 12,276.71 : x
  2. Step 2: Convert to fraction form
    19,352.87/26,702.29 = 12,276.71/x
  3. Step 3: Cross multiply
    19,352.87x = 26,702.29 × 12,276.71
  4. Step 4: Simplify right side
    19,352.87x = 327,816,270.67
  5. Step 5: Solve for x
    x = 327,816,270.67/19,352.87
  6. Step 6: Final answer
    x = 16,938.90

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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.