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Finding the Fourth Proportional to 14,970.58, 20,649.81 and 9,004.12

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Solution

The fourth proportional to 14,970.58, 20,649.81 and 9,004.12 is: 12,419.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.58 : 20,649.81 = 9,004.12 : x
  2. Step 2: Convert to fraction form
    14,970.58/20,649.81 = 9,004.12/x
  3. Step 3: Cross multiply
    14,970.58x = 20,649.81 × 9,004.12
  4. Step 4: Simplify right side
    14,970.58x = 185,933,367.22
  5. Step 5: Solve for x
    x = 185,933,367.22/14,970.58
  6. Step 6: Final answer
    x = 12,419.92

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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.