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Finding the Fourth Proportional to 19,307.95, 28,962.74 and 6,828.08

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Solution

The fourth proportional to 19,307.95, 28,962.74 and 6,828.08 is: 10,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.95 : 28,962.74 = 6,828.08 : x
  2. Step 2: Convert to fraction form
    19,307.95/28,962.74 = 6,828.08/x
  3. Step 3: Cross multiply
    19,307.95x = 28,962.74 × 6,828.08
  4. Step 4: Simplify right side
    19,307.95x = 197,759,726.79
  5. Step 5: Solve for x
    x = 197,759,726.79/19,307.95
  6. Step 6: Final answer
    x = 10,242.40

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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.