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Finding the Fourth Proportional to 1,093.53, 1,647.66 and 975.63

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Solution

The fourth proportional to 1,093.53, 1,647.66 and 975.63 is: 1,470.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.53 : 1,647.66 = 975.63 : x
  2. Step 2: Convert to fraction form
    1,093.53/1,647.66 = 975.63/x
  3. Step 3: Cross multiply
    1,093.53x = 1,647.66 × 975.63
  4. Step 4: Simplify right side
    1,093.53x = 1,607,506.53
  5. Step 5: Solve for x
    x = 1,607,506.53/1,093.53
  6. Step 6: Final answer
    x = 1,470.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.