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Finding the Fourth Proportional to 2,048.50, 2,826.93 and 1,117

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Solution

The fourth proportional to 2,048.50, 2,826.93 and 1,117 is: 1,541.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.50 : 2,826.93 = 1,117 : x
  2. Step 2: Convert to fraction form
    2,048.50/2,826.93 = 1,117/x
  3. Step 3: Cross multiply
    2,048.50x = 2,826.93 × 1,117
  4. Step 4: Simplify right side
    2,048.50x = 3,157,680.81
  5. Step 5: Solve for x
    x = 3,157,680.81/2,048.50
  6. Step 6: Final answer
    x = 1,541.46

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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.