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Finding the Fourth Proportional to 5,354.64, 7,395.30 and 3,465.72

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Solution

The fourth proportional to 5,354.64, 7,395.30 and 3,465.72 is: 4,786.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354.64 : 7,395.30 = 3,465.72 : x
  2. Step 2: Convert to fraction form
    5,354.64/7,395.30 = 3,465.72/x
  3. Step 3: Cross multiply
    5,354.64x = 7,395.30 × 3,465.72
  4. Step 4: Simplify right side
    5,354.64x = 25,630,039.12
  5. Step 5: Solve for x
    x = 25,630,039.12/5,354.64
  6. Step 6: Final answer
    x = 4,786.51

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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.