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Finding the Fourth Proportional to 19,875.98, 29,813.88 and 5,084.88

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Solution

The fourth proportional to 19,875.98, 29,813.88 and 5,084.88 is: 7,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.98 : 29,813.88 = 5,084.88 : x
  2. Step 2: Convert to fraction form
    19,875.98/29,813.88 = 5,084.88/x
  3. Step 3: Cross multiply
    19,875.98x = 29,813.88 × 5,084.88
  4. Step 4: Simplify right side
    19,875.98x = 151,600,002.13
  5. Step 5: Solve for x
    x = 151,600,002.13/19,875.98
  6. Step 6: Final answer
    x = 7,627.30

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1.5x scale

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.