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Finding the Fourth Proportional to 1,756.46, 2,424.03 and 970.49

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Solution

The fourth proportional to 1,756.46, 2,424.03 and 970.49 is: 1,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.46 : 2,424.03 = 970.49 : x
  2. Step 2: Convert to fraction form
    1,756.46/2,424.03 = 970.49/x
  3. Step 3: Cross multiply
    1,756.46x = 2,424.03 × 970.49
  4. Step 4: Simplify right side
    1,756.46x = 2,352,484.75
  5. Step 5: Solve for x
    x = 2,352,484.75/1,756.46
  6. Step 6: Final answer
    x = 1,339.34

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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.