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Finding the Fourth Proportional to 5,671.55, 8,509.05 and 2,900.16

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Solution

The fourth proportional to 5,671.55, 8,509.05 and 2,900.16 is: 4,351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.55 : 8,509.05 = 2,900.16 : x
  2. Step 2: Convert to fraction form
    5,671.55/8,509.05 = 2,900.16/x
  3. Step 3: Cross multiply
    5,671.55x = 8,509.05 × 2,900.16
  4. Step 4: Simplify right side
    5,671.55x = 24,677,638.36
  5. Step 5: Solve for x
    x = 24,677,638.36/5,671.55
  6. Step 6: Final answer
    x = 4,351.13

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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.