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Finding the Fourth Proportional to 7,988.76, 11,022.48 and 4,844.40

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Solution

The fourth proportional to 7,988.76, 11,022.48 and 4,844.40 is: 6,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.76 : 11,022.48 = 4,844.40 : x
  2. Step 2: Convert to fraction form
    7,988.76/11,022.48 = 4,844.40/x
  3. Step 3: Cross multiply
    7,988.76x = 11,022.48 × 4,844.40
  4. Step 4: Simplify right side
    7,988.76x = 53,397,302.11
  5. Step 5: Solve for x
    x = 53,397,302.11/7,988.76
  6. Step 6: Final answer
    x = 6,684.05

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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.