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Finding the Fourth Proportional to 61,303.38, 91,955.28 and 16,929.15

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Solution

The fourth proportional to 61,303.38, 91,955.28 and 16,929.15 is: 25,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,303.38 : 91,955.28 = 16,929.15 : x
  2. Step 2: Convert to fraction form
    61,303.38/91,955.28 = 16,929.15/x
  3. Step 3: Cross multiply
    61,303.38x = 91,955.28 × 16,929.15
  4. Step 4: Simplify right side
    61,303.38x = 1,556,724,728.41
  5. Step 5: Solve for x
    x = 1,556,724,728.41/61,303.38
  6. Step 6: Final answer
    x = 25,393.78

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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.