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Finding the Fourth Proportional to 42,356.40, 63,559.80 and 16,063.80

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Solution

The fourth proportional to 42,356.40, 63,559.80 and 16,063.80 is: 24,105.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,356.40 : 63,559.80 = 16,063.80 : x
  2. Step 2: Convert to fraction form
    42,356.40/63,559.80 = 16,063.80/x
  3. Step 3: Cross multiply
    42,356.40x = 63,559.80 × 16,063.80
  4. Step 4: Simplify right side
    42,356.40x = 1,021,011,915.24
  5. Step 5: Solve for x
    x = 1,021,011,915.24/42,356.40
  6. Step 6: Final answer
    x = 24,105.26

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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.