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Finding the Fourth Proportional to 3,455.64, 5,160.05 and 3,008.52

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Solution

The fourth proportional to 3,455.64, 5,160.05 and 3,008.52 is: 4,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.64 : 5,160.05 = 3,008.52 : x
  2. Step 2: Convert to fraction form
    3,455.64/5,160.05 = 3,008.52/x
  3. Step 3: Cross multiply
    3,455.64x = 5,160.05 × 3,008.52
  4. Step 4: Simplify right side
    3,455.64x = 15,524,113.63
  5. Step 5: Solve for x
    x = 15,524,113.63/3,455.64
  6. Step 6: Final answer
    x = 4,492.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.