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Finding the Fourth Proportional to 14,839.52, 20,476.98 and 8,465.63

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Solution

The fourth proportional to 14,839.52, 20,476.98 and 8,465.63 is: 11,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,839.52 : 20,476.98 = 8,465.63 : x
  2. Step 2: Convert to fraction form
    14,839.52/20,476.98 = 8,465.63/x
  3. Step 3: Cross multiply
    14,839.52x = 20,476.98 × 8,465.63
  4. Step 4: Simplify right side
    14,839.52x = 173,350,433.81
  5. Step 5: Solve for x
    x = 173,350,433.81/14,839.52
  6. Step 6: Final answer
    x = 11,681.68

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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.