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Finding the Fourth Proportional to 30,948.48, 46,432.84 and 9,891.98

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Solution

The fourth proportional to 30,948.48, 46,432.84 and 9,891.98 is: 14,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,948.48 : 46,432.84 = 9,891.98 : x
  2. Step 2: Convert to fraction form
    30,948.48/46,432.84 = 9,891.98/x
  3. Step 3: Cross multiply
    30,948.48x = 46,432.84 × 9,891.98
  4. Step 4: Simplify right side
    30,948.48x = 459,312,724.62
  5. Step 5: Solve for x
    x = 459,312,724.62/30,948.48
  6. Step 6: Final answer
    x = 14,841.20

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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.