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Finding the Fourth Proportional to 14,274.60, 19,698.54 and 7,901.46

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Solution

The fourth proportional to 14,274.60, 19,698.54 and 7,901.46 is: 10,903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,274.60 : 19,698.54 = 7,901.46 : x
  2. Step 2: Convert to fraction form
    14,274.60/19,698.54 = 7,901.46/x
  3. Step 3: Cross multiply
    14,274.60x = 19,698.54 × 7,901.46
  4. Step 4: Simplify right side
    14,274.60x = 155,647,225.87
  5. Step 5: Solve for x
    x = 155,647,225.87/14,274.60
  6. Step 6: Final answer
    x = 10,903.79

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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.