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Finding the Fourth Proportional to 30,482.10, 42,063.98 and 17,050.82

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Solution

The fourth proportional to 30,482.10, 42,063.98 and 17,050.82 is: 23,529.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482.10 : 42,063.98 = 17,050.82 : x
  2. Step 2: Convert to fraction form
    30,482.10/42,063.98 = 17,050.82/x
  3. Step 3: Cross multiply
    30,482.10x = 42,063.98 × 17,050.82
  4. Step 4: Simplify right side
    30,482.10x = 717,225,055.89
  5. Step 5: Solve for x
    x = 717,225,055.89/30,482.10
  6. Step 6: Final answer
    x = 23,529.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.