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Finding the Fourth Proportional to 1,716.63, 2,368.98 and 970.62

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Solution

The fourth proportional to 1,716.63, 2,368.98 and 970.62 is: 1,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.63 : 2,368.98 = 970.62 : x
  2. Step 2: Convert to fraction form
    1,716.63/2,368.98 = 970.62/x
  3. Step 3: Cross multiply
    1,716.63x = 2,368.98 × 970.62
  4. Step 4: Simplify right side
    1,716.63x = 2,299,379.37
  5. Step 5: Solve for x
    x = 2,299,379.37/1,716.63
  6. Step 6: Final answer
    x = 1,339.47

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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.