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Finding the Fourth Proportional to 7,357.92, 11,038.80 and 4,454.88

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Solution

The fourth proportional to 7,357.92, 11,038.80 and 4,454.88 is: 6,683.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,357.92 : 11,038.80 = 4,454.88 : x
  2. Step 2: Convert to fraction form
    7,357.92/11,038.80 = 4,454.88/x
  3. Step 3: Cross multiply
    7,357.92x = 11,038.80 × 4,454.88
  4. Step 4: Simplify right side
    7,357.92x = 49,176,529.34
  5. Step 5: Solve for x
    x = 49,176,529.34/7,357.92
  6. Step 6: Final answer
    x = 6,683.48

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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.