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Finding the Fourth Proportional to 15,959.80, 22,024.74 and 8,886.40

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Solution

The fourth proportional to 15,959.80, 22,024.74 and 8,886.40 is: 12,263.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,959.80 : 22,024.74 = 8,886.40 : x
  2. Step 2: Convert to fraction form
    15,959.80/22,024.74 = 8,886.40/x
  3. Step 3: Cross multiply
    15,959.80x = 22,024.74 × 8,886.40
  4. Step 4: Simplify right side
    15,959.80x = 195,720,649.54
  5. Step 5: Solve for x
    x = 195,720,649.54/15,959.80
  6. Step 6: Final answer
    x = 12,263.35

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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.