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Finding the Fourth Proportional to 17,913.98, 24,656.04 and 15,775.51

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Solution

The fourth proportional to 17,913.98, 24,656.04 and 15,775.51 is: 21,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,913.98 : 24,656.04 = 15,775.51 : x
  2. Step 2: Convert to fraction form
    17,913.98/24,656.04 = 15,775.51/x
  3. Step 3: Cross multiply
    17,913.98x = 24,656.04 × 15,775.51
  4. Step 4: Simplify right side
    17,913.98x = 388,961,605.58
  5. Step 5: Solve for x
    x = 388,961,605.58/17,913.98
  6. Step 6: Final answer
    x = 21,712.74

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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.