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Finding the Fourth Proportional to 14,274.65, 19,699.05 and 7,901.68

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Solution

The fourth proportional to 14,274.65, 19,699.05 and 7,901.68 is: 10,904.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,274.65 : 19,699.05 = 7,901.68 : x
  2. Step 2: Convert to fraction form
    14,274.65/19,699.05 = 7,901.68/x
  3. Step 3: Cross multiply
    14,274.65x = 19,699.05 × 7,901.68
  4. Step 4: Simplify right side
    14,274.65x = 155,655,589.40
  5. Step 5: Solve for x
    x = 155,655,589.40/14,274.65
  6. Step 6: Final answer
    x = 10,904.34

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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.