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Finding the Fourth Proportional to 7,070.70, 9,756.54 and 4,237.44

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Solution

The fourth proportional to 7,070.70, 9,756.54 and 4,237.44 is: 5,847.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.70 : 9,756.54 = 4,237.44 : x
  2. Step 2: Convert to fraction form
    7,070.70/9,756.54 = 4,237.44/x
  3. Step 3: Cross multiply
    7,070.70x = 9,756.54 × 4,237.44
  4. Step 4: Simplify right side
    7,070.70x = 41,342,752.86
  5. Step 5: Solve for x
    x = 41,342,752.86/7,070.70
  6. Step 6: Final answer
    x = 5,847.05

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1.5x scale

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.