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Finding the Fourth Proportional to 5,838.88, 8,793.28 and 4,920.16

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Solution

The fourth proportional to 5,838.88, 8,793.28 and 4,920.16 is: 7,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,838.88 : 8,793.28 = 4,920.16 : x
  2. Step 2: Convert to fraction form
    5,838.88/8,793.28 = 4,920.16/x
  3. Step 3: Cross multiply
    5,838.88x = 8,793.28 × 4,920.16
  4. Step 4: Simplify right side
    5,838.88x = 43,264,344.52
  5. Step 5: Solve for x
    x = 43,264,344.52/5,838.88
  6. Step 6: Final answer
    x = 7,409.70

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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.