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Finding the Fourth Proportional to 1,496.56, 2,064 and 972.76

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Solution

The fourth proportional to 1,496.56, 2,064 and 972.76 is: 1,341.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,496.56 : 2,064 = 972.76 : x
  2. Step 2: Convert to fraction form
    1,496.56/2,064 = 972.76/x
  3. Step 3: Cross multiply
    1,496.56x = 2,064 × 972.76
  4. Step 4: Simplify right side
    1,496.56x = 2,007,776.64
  5. Step 5: Solve for x
    x = 2,007,776.64/1,496.56
  6. Step 6: Final answer
    x = 1,341.59

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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.