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Finding the Fourth Proportional to 59,586.84, 89,205.30 and 47,018.88

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Solution

The fourth proportional to 59,586.84, 89,205.30 and 47,018.88 is: 70,390.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,586.84 : 89,205.30 = 47,018.88 : x
  2. Step 2: Convert to fraction form
    59,586.84/89,205.30 = 47,018.88/x
  3. Step 3: Cross multiply
    59,586.84x = 89,205.30 × 47,018.88
  4. Step 4: Simplify right side
    59,586.84x = 4,194,333,296.06
  5. Step 5: Solve for x
    x = 4,194,333,296.06/59,586.84
  6. Step 6: Final answer
    x = 70,390.26

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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.