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Finding the Fourth Proportional to 10,614.69, 14,651.69 and 6,426.45

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Solution

The fourth proportional to 10,614.69, 14,651.69 and 6,426.45 is: 8,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,614.69 : 14,651.69 = 6,426.45 : x
  2. Step 2: Convert to fraction form
    10,614.69/14,651.69 = 6,426.45/x
  3. Step 3: Cross multiply
    10,614.69x = 14,651.69 × 6,426.45
  4. Step 4: Simplify right side
    10,614.69x = 94,158,321.07
  5. Step 5: Solve for x
    x = 94,158,321.07/10,614.69
  6. Step 6: Final answer
    x = 8,870.57

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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.