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Finding the Fourth Proportional to 65,544.76, 98,326.14 and 21,156.76

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Solution

The fourth proportional to 65,544.76, 98,326.14 and 21,156.76 is: 31,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,544.76 : 98,326.14 = 21,156.76 : x
  2. Step 2: Convert to fraction form
    65,544.76/98,326.14 = 21,156.76/x
  3. Step 3: Cross multiply
    65,544.76x = 98,326.14 × 21,156.76
  4. Step 4: Simplify right side
    65,544.76x = 2,080,262,545.71
  5. Step 5: Solve for x
    x = 2,080,262,545.71/65,544.76
  6. Step 6: Final answer
    x = 31,738.05

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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.