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Finding the Fourth Proportional to 14,201.68, 19,597.32 and 7,914.40

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Solution

The fourth proportional to 14,201.68, 19,597.32 and 7,914.40 is: 10,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,201.68 : 19,597.32 = 7,914.40 : x
  2. Step 2: Convert to fraction form
    14,201.68/19,597.32 = 7,914.40/x
  3. Step 3: Cross multiply
    14,201.68x = 19,597.32 × 7,914.40
  4. Step 4: Simplify right side
    14,201.68x = 155,101,029.41
  5. Step 5: Solve for x
    x = 155,101,029.41/14,201.68
  6. Step 6: Final answer
    x = 10,921.32

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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.