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Finding the Fourth Proportional to 5,802.50, 8,705.20 and 1,698.50

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Solution

The fourth proportional to 5,802.50, 8,705.20 and 1,698.50 is: 2,548.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,802.50 : 8,705.20 = 1,698.50 : x
  2. Step 2: Convert to fraction form
    5,802.50/8,705.20 = 1,698.50/x
  3. Step 3: Cross multiply
    5,802.50x = 8,705.20 × 1,698.50
  4. Step 4: Simplify right side
    5,802.50x = 14,785,782.20
  5. Step 5: Solve for x
    x = 14,785,782.20/5,802.50
  6. Step 6: Final answer
    x = 2,548.17

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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.