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Finding the Fourth Proportional to 53,986.80, 80,955.90 and 24,389.40

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Solution

The fourth proportional to 53,986.80, 80,955.90 and 24,389.40 is: 36,573.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,986.80 : 80,955.90 = 24,389.40 : x
  2. Step 2: Convert to fraction form
    53,986.80/80,955.90 = 24,389.40/x
  3. Step 3: Cross multiply
    53,986.80x = 80,955.90 × 24,389.40
  4. Step 4: Simplify right side
    53,986.80x = 1,974,465,827.46
  5. Step 5: Solve for x
    x = 1,974,465,827.46/53,986.80
  6. Step 6: Final answer
    x = 36,573.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.