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Finding the Fourth Proportional to 4,048.40, 5,368.76 and 4,048.40

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Solution

The fourth proportional to 4,048.40, 5,368.76 and 4,048.40 is: 5,368.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,048.40 : 5,368.76 = 4,048.40 : x
  2. Step 2: Convert to fraction form
    4,048.40/5,368.76 = 4,048.40/x
  3. Step 3: Cross multiply
    4,048.40x = 5,368.76 × 4,048.40
  4. Step 4: Simplify right side
    4,048.40x = 21,734,887.98
  5. Step 5: Solve for x
    x = 21,734,887.98/4,048.40
  6. Step 6: Final answer
    x = 5,368.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.