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Finding the Fourth Proportional to 19,088, 26,344.32 and 11,640.32

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Solution

The fourth proportional to 19,088, 26,344.32 and 11,640.32 is: 16,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088 : 26,344.32 = 11,640.32 : x
  2. Step 2: Convert to fraction form
    19,088/26,344.32 = 11,640.32/x
  3. Step 3: Cross multiply
    19,088x = 26,344.32 × 11,640.32
  4. Step 4: Simplify right side
    19,088x = 306,656,314.98
  5. Step 5: Solve for x
    x = 306,656,314.98/19,088
  6. Step 6: Final answer
    x = 16,065.40

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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.