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Finding the Fourth Proportional to 14,419.28, 19,898.54 and 7,795.28

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Solution

The fourth proportional to 14,419.28, 19,898.54 and 7,795.28 is: 10,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.28 : 19,898.54 = 7,795.28 : x
  2. Step 2: Convert to fraction form
    14,419.28/19,898.54 = 7,795.28/x
  3. Step 3: Cross multiply
    14,419.28x = 19,898.54 × 7,795.28
  4. Step 4: Simplify right side
    14,419.28x = 155,114,690.89
  5. Step 5: Solve for x
    x = 155,114,690.89/14,419.28
  6. Step 6: Final answer
    x = 10,757.45

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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.