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Finding the Fourth Proportional to 4,681.92, 7,017.72 and 2,339.28

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Solution

The fourth proportional to 4,681.92, 7,017.72 and 2,339.28 is: 3,506.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,681.92 : 7,017.72 = 2,339.28 : x
  2. Step 2: Convert to fraction form
    4,681.92/7,017.72 = 2,339.28/x
  3. Step 3: Cross multiply
    4,681.92x = 7,017.72 × 2,339.28
  4. Step 4: Simplify right side
    4,681.92x = 16,416,412.04
  5. Step 5: Solve for x
    x = 16,416,412.04/4,681.92
  6. Step 6: Final answer
    x = 3,506.34

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1.5x scale

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.