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Finding the Fourth Proportional to 19,353.63, 29,019.47 and 17,702.49

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Solution

The fourth proportional to 19,353.63, 29,019.47 and 17,702.49 is: 26,543.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,353.63 : 29,019.47 = 17,702.49 : x
  2. Step 2: Convert to fraction form
    19,353.63/29,019.47 = 17,702.49/x
  3. Step 3: Cross multiply
    19,353.63x = 29,019.47 × 17,702.49
  4. Step 4: Simplify right side
    19,353.63x = 513,716,788.97
  5. Step 5: Solve for x
    x = 513,716,788.97/19,353.63
  6. Step 6: Final answer
    x = 26,543.69

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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.