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Finding the Fourth Proportional to 3,047.70, 4,271.10 and 3,047.70

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Solution

The fourth proportional to 3,047.70, 4,271.10 and 3,047.70 is: 4,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.70 : 4,271.10 = 3,047.70 : x
  2. Step 2: Convert to fraction form
    3,047.70/4,271.10 = 3,047.70/x
  3. Step 3: Cross multiply
    3,047.70x = 4,271.10 × 3,047.70
  4. Step 4: Simplify right side
    3,047.70x = 13,017,031.47
  5. Step 5: Solve for x
    x = 13,017,031.47/3,047.70
  6. Step 6: Final answer
    x = 4,271.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.