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Finding the Fourth Proportional to 15,960.47, 22,024.56 and 8,788.98

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Solution

The fourth proportional to 15,960.47, 22,024.56 and 8,788.98 is: 12,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.47 : 22,024.56 = 8,788.98 : x
  2. Step 2: Convert to fraction form
    15,960.47/22,024.56 = 8,788.98/x
  3. Step 3: Cross multiply
    15,960.47x = 22,024.56 × 8,788.98
  4. Step 4: Simplify right side
    15,960.47x = 193,573,417.35
  5. Step 5: Solve for x
    x = 193,573,417.35/15,960.47
  6. Step 6: Final answer
    x = 12,128.31

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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.