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Finding the Fourth Proportional to 35,624.76, 53,478.54 and 20,844.28

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Solution

The fourth proportional to 35,624.76, 53,478.54 and 20,844.28 is: 31,290.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,624.76 : 53,478.54 = 20,844.28 : x
  2. Step 2: Convert to fraction form
    35,624.76/53,478.54 = 20,844.28/x
  3. Step 3: Cross multiply
    35,624.76x = 53,478.54 × 20,844.28
  4. Step 4: Simplify right side
    35,624.76x = 1,114,721,661.75
  5. Step 5: Solve for x
    x = 1,114,721,661.75/35,624.76
  6. Step 6: Final answer
    x = 31,290.64

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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.