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Finding the Fourth Proportional to 19,702.84, 29,559.18 and 5,851.84

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Solution

The fourth proportional to 19,702.84, 29,559.18 and 5,851.84 is: 8,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,702.84 : 29,559.18 = 5,851.84 : x
  2. Step 2: Convert to fraction form
    19,702.84/29,559.18 = 5,851.84/x
  3. Step 3: Cross multiply
    19,702.84x = 29,559.18 × 5,851.84
  4. Step 4: Simplify right side
    19,702.84x = 172,975,591.89
  5. Step 5: Solve for x
    x = 172,975,591.89/19,702.84
  6. Step 6: Final answer
    x = 8,779.22

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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.