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Finding the Fourth Proportional to 30,596.55, 45,897.04 and 12,809.32

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Solution

The fourth proportional to 30,596.55, 45,897.04 and 12,809.32 is: 19,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,596.55 : 45,897.04 = 12,809.32 : x
  2. Step 2: Convert to fraction form
    30,596.55/45,897.04 = 12,809.32/x
  3. Step 3: Cross multiply
    30,596.55x = 45,897.04 × 12,809.32
  4. Step 4: Simplify right side
    30,596.55x = 587,909,773.68
  5. Step 5: Solve for x
    x = 587,909,773.68/30,596.55
  6. Step 6: Final answer
    x = 19,214.91

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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.