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Finding the Fourth Proportional to 34,543.16, 47,669.56 and 19,639.16

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Solution

The fourth proportional to 34,543.16, 47,669.56 and 19,639.16 is: 27,102.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,543.16 : 47,669.56 = 19,639.16 : x
  2. Step 2: Convert to fraction form
    34,543.16/47,669.56 = 19,639.16/x
  3. Step 3: Cross multiply
    34,543.16x = 47,669.56 × 19,639.16
  4. Step 4: Simplify right side
    34,543.16x = 936,190,115.97
  5. Step 5: Solve for x
    x = 936,190,115.97/34,543.16
  6. Step 6: Final answer
    x = 27,102.04

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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.