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Finding the Fourth Proportional to 5,973.60, 8,243.28 and 3,455.28

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Solution

The fourth proportional to 5,973.60, 8,243.28 and 3,455.28 is: 4,768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,973.60 : 8,243.28 = 3,455.28 : x
  2. Step 2: Convert to fraction form
    5,973.60/8,243.28 = 3,455.28/x
  3. Step 3: Cross multiply
    5,973.60x = 8,243.28 × 3,455.28
  4. Step 4: Simplify right side
    5,973.60x = 28,482,840.52
  5. Step 5: Solve for x
    x = 28,482,840.52/5,973.60
  6. Step 6: Final answer
    x = 4,768.12

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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.