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Finding the Fourth Proportional to 53,141.40, 79,712.10 and 36,552.60

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Solution

The fourth proportional to 53,141.40, 79,712.10 and 36,552.60 is: 54,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,141.40 : 79,712.10 = 36,552.60 : x
  2. Step 2: Convert to fraction form
    53,141.40/79,712.10 = 36,552.60/x
  3. Step 3: Cross multiply
    53,141.40x = 79,712.10 × 36,552.60
  4. Step 4: Simplify right side
    53,141.40x = 2,913,684,506.46
  5. Step 5: Solve for x
    x = 2,913,684,506.46/53,141.40
  6. Step 6: Final answer
    x = 54,828.90

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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.