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Finding the Fourth Proportional to 5,607.61, 8,412.02 and 2,686.75

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Solution

The fourth proportional to 5,607.61, 8,412.02 and 2,686.75 is: 4,030.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.61 : 8,412.02 = 2,686.75 : x
  2. Step 2: Convert to fraction form
    5,607.61/8,412.02 = 2,686.75/x
  3. Step 3: Cross multiply
    5,607.61x = 8,412.02 × 2,686.75
  4. Step 4: Simplify right side
    5,607.61x = 22,600,994.74
  5. Step 5: Solve for x
    x = 22,600,994.74/5,607.61
  6. Step 6: Final answer
    x = 4,030.41

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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.