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Finding the Fourth Proportional to 1,114.03, 1,669.05 and 1,048.16

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Solution

The fourth proportional to 1,114.03, 1,669.05 and 1,048.16 is: 1,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.03 : 1,669.05 = 1,048.16 : x
  2. Step 2: Convert to fraction form
    1,114.03/1,669.05 = 1,048.16/x
  3. Step 3: Cross multiply
    1,114.03x = 1,669.05 × 1,048.16
  4. Step 4: Simplify right side
    1,114.03x = 1,749,431.45
  5. Step 5: Solve for x
    x = 1,749,431.45/1,114.03
  6. Step 6: Final answer
    x = 1,570.36

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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.