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Finding the Fourth Proportional to 5,748.16, 8,602.80 and 3,558.40

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Solution

The fourth proportional to 5,748.16, 8,602.80 and 3,558.40 is: 5,325.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,748.16 : 8,602.80 = 3,558.40 : x
  2. Step 2: Convert to fraction form
    5,748.16/8,602.80 = 3,558.40/x
  3. Step 3: Cross multiply
    5,748.16x = 8,602.80 × 3,558.40
  4. Step 4: Simplify right side
    5,748.16x = 30,612,203.52
  5. Step 5: Solve for x
    x = 30,612,203.52/5,748.16
  6. Step 6: Final answer
    x = 5,325.57

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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.