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Finding the Fourth Proportional to 59,869.88, 89,805.66 and 28,697.84

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Solution

The fourth proportional to 59,869.88, 89,805.66 and 28,697.84 is: 43,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,869.88 : 89,805.66 = 28,697.84 : x
  2. Step 2: Convert to fraction form
    59,869.88/89,805.66 = 28,697.84/x
  3. Step 3: Cross multiply
    59,869.88x = 89,805.66 × 28,697.84
  4. Step 4: Simplify right side
    59,869.88x = 2,577,228,461.77
  5. Step 5: Solve for x
    x = 2,577,228,461.77/59,869.88
  6. Step 6: Final answer
    x = 43,047.16

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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.