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Finding the Fourth Proportional to 70,547.70, 105,820.17 and 17,240.01

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Solution

The fourth proportional to 70,547.70, 105,820.17 and 17,240.01 is: 25,859.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,547.70 : 105,820.17 = 17,240.01 : x
  2. Step 2: Convert to fraction form
    70,547.70/105,820.17 = 17,240.01/x
  3. Step 3: Cross multiply
    70,547.70x = 105,820.17 × 17,240.01
  4. Step 4: Simplify right side
    70,547.70x = 1,824,340,789.00
  5. Step 5: Solve for x
    x = 1,824,340,789.00/70,547.70
  6. Step 6: Final answer
    x = 25,859.68

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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.