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Finding the Fourth Proportional to 4,998.16, 7,498.70 and 1,488.20

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Solution

The fourth proportional to 4,998.16, 7,498.70 and 1,488.20 is: 2,232.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.16 : 7,498.70 = 1,488.20 : x
  2. Step 2: Convert to fraction form
    4,998.16/7,498.70 = 1,488.20/x
  3. Step 3: Cross multiply
    4,998.16x = 7,498.70 × 1,488.20
  4. Step 4: Simplify right side
    4,998.16x = 11,159,565.34
  5. Step 5: Solve for x
    x = 11,159,565.34/4,998.16
  6. Step 6: Final answer
    x = 2,232.73

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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.