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Finding the Fourth Proportional to 15,968.69, 22,036.78 and 8,798.70

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Solution

The fourth proportional to 15,968.69, 22,036.78 and 8,798.70 is: 12,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,968.69 : 22,036.78 = 8,798.70 : x
  2. Step 2: Convert to fraction form
    15,968.69/22,036.78 = 8,798.70/x
  3. Step 3: Cross multiply
    15,968.69x = 22,036.78 × 8,798.70
  4. Step 4: Simplify right side
    15,968.69x = 193,894,994.19
  5. Step 5: Solve for x
    x = 193,894,994.19/15,968.69
  6. Step 6: Final answer
    x = 12,142.20

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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.