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Finding the Fourth Proportional to 5,593.80, 8,390.70 and 1,698.20

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Solution

The fourth proportional to 5,593.80, 8,390.70 and 1,698.20 is: 2,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,593.80 : 8,390.70 = 1,698.20 : x
  2. Step 2: Convert to fraction form
    5,593.80/8,390.70 = 1,698.20/x
  3. Step 3: Cross multiply
    5,593.80x = 8,390.70 × 1,698.20
  4. Step 4: Simplify right side
    5,593.80x = 14,249,086.74
  5. Step 5: Solve for x
    x = 14,249,086.74/5,593.80
  6. Step 6: Final answer
    x = 2,547.30

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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.