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Finding the Fourth Proportional to 8,900.42, 13,374.90 and 4,743.41

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Solution

The fourth proportional to 8,900.42, 13,374.90 and 4,743.41 is: 7,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.42 : 13,374.90 = 4,743.41 : x
  2. Step 2: Convert to fraction form
    8,900.42/13,374.90 = 4,743.41/x
  3. Step 3: Cross multiply
    8,900.42x = 13,374.90 × 4,743.41
  4. Step 4: Simplify right side
    8,900.42x = 63,442,567.53
  5. Step 5: Solve for x
    x = 63,442,567.53/8,900.42
  6. Step 6: Final answer
    x = 7,128.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.