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Finding the Fourth Proportional to 5,648.58, 7,795.50 and 3,130.94

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Solution

The fourth proportional to 5,648.58, 7,795.50 and 3,130.94 is: 4,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.58 : 7,795.50 = 3,130.94 : x
  2. Step 2: Convert to fraction form
    5,648.58/7,795.50 = 3,130.94/x
  3. Step 3: Cross multiply
    5,648.58x = 7,795.50 × 3,130.94
  4. Step 4: Simplify right side
    5,648.58x = 24,407,242.77
  5. Step 5: Solve for x
    x = 24,407,242.77/5,648.58
  6. Step 6: Final answer
    x = 4,320.95

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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.