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Finding the Fourth Proportional to 15,798.52, 21,795.18 and 11,085.88

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Solution

The fourth proportional to 15,798.52, 21,795.18 and 11,085.88 is: 15,293.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.52 : 21,795.18 = 11,085.88 : x
  2. Step 2: Convert to fraction form
    15,798.52/21,795.18 = 11,085.88/x
  3. Step 3: Cross multiply
    15,798.52x = 21,795.18 × 11,085.88
  4. Step 4: Simplify right side
    15,798.52x = 241,618,750.06
  5. Step 5: Solve for x
    x = 241,618,750.06/15,798.52
  6. Step 6: Final answer
    x = 15,293.76

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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.