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Finding the Fourth Proportional to 14,427.52, 19,909.94 and 7,803.52

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Solution

The fourth proportional to 14,427.52, 19,909.94 and 7,803.52 is: 10,768.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,427.52 : 19,909.94 = 7,803.52 : x
  2. Step 2: Convert to fraction form
    14,427.52/19,909.94 = 7,803.52/x
  3. Step 3: Cross multiply
    14,427.52x = 19,909.94 × 7,803.52
  4. Step 4: Simplify right side
    14,427.52x = 155,367,614.99
  5. Step 5: Solve for x
    x = 155,367,614.99/14,427.52
  6. Step 6: Final answer
    x = 10,768.84

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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.