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Finding the Fourth Proportional to 69,698.64, 104,547.06 and 17,108.40

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Solution

The fourth proportional to 69,698.64, 104,547.06 and 17,108.40 is: 25,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,698.64 : 104,547.06 = 17,108.40 : x
  2. Step 2: Convert to fraction form
    69,698.64/104,547.06 = 17,108.40/x
  3. Step 3: Cross multiply
    69,698.64x = 104,547.06 × 17,108.40
  4. Step 4: Simplify right side
    69,698.64x = 1,788,632,921.30
  5. Step 5: Solve for x
    x = 1,788,632,921.30/69,698.64
  6. Step 6: Final answer
    x = 25,662.38

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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.