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Finding the Fourth Proportional to 5,903.40, 8,868.30 and 4,931.40

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Solution

The fourth proportional to 5,903.40, 8,868.30 and 4,931.40 is: 7,408.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,903.40 : 8,868.30 = 4,931.40 : x
  2. Step 2: Convert to fraction form
    5,903.40/8,868.30 = 4,931.40/x
  3. Step 3: Cross multiply
    5,903.40x = 8,868.30 × 4,931.40
  4. Step 4: Simplify right side
    5,903.40x = 43,733,134.62
  5. Step 5: Solve for x
    x = 43,733,134.62/5,903.40
  6. Step 6: Final answer
    x = 7,408.13

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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.