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Finding the Fourth Proportional to 5,223.40, 7,881.63 and 5,020.88

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Solution

The fourth proportional to 5,223.40, 7,881.63 and 5,020.88 is: 7,576.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.40 : 7,881.63 = 5,020.88 : x
  2. Step 2: Convert to fraction form
    5,223.40/7,881.63 = 5,020.88/x
  3. Step 3: Cross multiply
    5,223.40x = 7,881.63 × 5,020.88
  4. Step 4: Simplify right side
    5,223.40x = 39,572,718.43
  5. Step 5: Solve for x
    x = 39,572,718.43/5,223.40
  6. Step 6: Final answer
    x = 7,576.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.