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Finding the Fourth Proportional to 19,117.98, 28,671.12 and 6,634.98

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Solution

The fourth proportional to 19,117.98, 28,671.12 and 6,634.98 is: 9,950.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.98 : 28,671.12 = 6,634.98 : x
  2. Step 2: Convert to fraction form
    19,117.98/28,671.12 = 6,634.98/x
  3. Step 3: Cross multiply
    19,117.98x = 28,671.12 × 6,634.98
  4. Step 4: Simplify right side
    19,117.98x = 190,232,307.78
  5. Step 5: Solve for x
    x = 190,232,307.78/19,117.98
  6. Step 6: Final answer
    x = 9,950.44

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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.