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Finding the Fourth Proportional to 15,240.73, 21,031.73 and 8,526.48

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Solution

The fourth proportional to 15,240.73, 21,031.73 and 8,526.48 is: 11,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.73 : 21,031.73 = 8,526.48 : x
  2. Step 2: Convert to fraction form
    15,240.73/21,031.73 = 8,526.48/x
  3. Step 3: Cross multiply
    15,240.73x = 21,031.73 × 8,526.48
  4. Step 4: Simplify right side
    15,240.73x = 179,326,477.42
  5. Step 5: Solve for x
    x = 179,326,477.42/15,240.73
  6. Step 6: Final answer
    x = 11,766.27

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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.