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Finding the Fourth Proportional to 7,671.53, 10,586.86 and 4,485.11

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Solution

The fourth proportional to 7,671.53, 10,586.86 and 4,485.11 is: 6,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.53 : 10,586.86 = 4,485.11 : x
  2. Step 2: Convert to fraction form
    7,671.53/10,586.86 = 4,485.11/x
  3. Step 3: Cross multiply
    7,671.53x = 10,586.86 × 4,485.11
  4. Step 4: Simplify right side
    7,671.53x = 47,483,167.51
  5. Step 5: Solve for x
    x = 47,483,167.51/7,671.53
  6. Step 6: Final answer
    x = 6,189.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.