Home / 7,648.50-10,556.67-4,505.70

Finding the Fourth Proportional to 7,648.50, 10,556.67 and 4,505.70

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Solution

The fourth proportional to 7,648.50, 10,556.67 and 4,505.70 is: 6,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.50 : 10,556.67 = 4,505.70 : x
  2. Step 2: Convert to fraction form
    7,648.50/10,556.67 = 4,505.70/x
  3. Step 3: Cross multiply
    7,648.50x = 10,556.67 × 4,505.70
  4. Step 4: Simplify right side
    7,648.50x = 47,565,188.02
  5. Step 5: Solve for x
    x = 47,565,188.02/7,648.50
  6. Step 6: Final answer
    x = 6,218.89

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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.