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Finding the Fourth Proportional to 8,403.30, 12,594.56 and 7,365.31

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Solution

The fourth proportional to 8,403.30, 12,594.56 and 7,365.31 is: 11,038.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.30 : 12,594.56 = 7,365.31 : x
  2. Step 2: Convert to fraction form
    8,403.30/12,594.56 = 7,365.31/x
  3. Step 3: Cross multiply
    8,403.30x = 12,594.56 × 7,365.31
  4. Step 4: Simplify right side
    8,403.30x = 92,762,770.40
  5. Step 5: Solve for x
    x = 92,762,770.40/8,403.30
  6. Step 6: Final answer
    x = 11,038.85

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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.