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Finding the Fourth Proportional to 5,258.80, 7,888.20 and 4,938.04

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Solution

The fourth proportional to 5,258.80, 7,888.20 and 4,938.04 is: 7,407.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258.80 : 7,888.20 = 4,938.04 : x
  2. Step 2: Convert to fraction form
    5,258.80/7,888.20 = 4,938.04/x
  3. Step 3: Cross multiply
    5,258.80x = 7,888.20 × 4,938.04
  4. Step 4: Simplify right side
    5,258.80x = 38,952,247.13
  5. Step 5: Solve for x
    x = 38,952,247.13/5,258.80
  6. Step 6: Final answer
    x = 7,407.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.