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Finding the Fourth Proportional to 19,248.75, 28,873.13 and 4,656.75

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Solution

The fourth proportional to 19,248.75, 28,873.13 and 4,656.75 is: 6,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,248.75 : 28,873.13 = 4,656.75 : x
  2. Step 2: Convert to fraction form
    19,248.75/28,873.13 = 4,656.75/x
  3. Step 3: Cross multiply
    19,248.75x = 28,873.13 × 4,656.75
  4. Step 4: Simplify right side
    19,248.75x = 134,454,924.84
  5. Step 5: Solve for x
    x = 134,454,924.84/19,248.75
  6. Step 6: Final answer
    x = 6,985.13

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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.