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Finding the Fourth Proportional to 15,866.72, 21,894.52 and 9,492.04

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Solution

The fourth proportional to 15,866.72, 21,894.52 and 9,492.04 is: 13,098.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.72 : 21,894.52 = 9,492.04 : x
  2. Step 2: Convert to fraction form
    15,866.72/21,894.52 = 9,492.04/x
  3. Step 3: Cross multiply
    15,866.72x = 21,894.52 × 9,492.04
  4. Step 4: Simplify right side
    15,866.72x = 207,823,659.62
  5. Step 5: Solve for x
    x = 207,823,659.62/15,866.72
  6. Step 6: Final answer
    x = 13,098.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.