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Finding the Fourth Proportional to 6,143.55, 8,472.47 and 4,554.16

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Solution

The fourth proportional to 6,143.55, 8,472.47 and 4,554.16 is: 6,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.55 : 8,472.47 = 4,554.16 : x
  2. Step 2: Convert to fraction form
    6,143.55/8,472.47 = 4,554.16/x
  3. Step 3: Cross multiply
    6,143.55x = 8,472.47 × 4,554.16
  4. Step 4: Simplify right side
    6,143.55x = 38,584,941.61
  5. Step 5: Solve for x
    x = 38,584,941.61/6,143.55
  6. Step 6: Final answer
    x = 6,280.57

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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.