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Finding the Fourth Proportional to 10,643.55, 14,687.93 and 6,167.19

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Solution

The fourth proportional to 10,643.55, 14,687.93 and 6,167.19 is: 8,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.55 : 14,687.93 = 6,167.19 : x
  2. Step 2: Convert to fraction form
    10,643.55/14,687.93 = 6,167.19/x
  3. Step 3: Cross multiply
    10,643.55x = 14,687.93 × 6,167.19
  4. Step 4: Simplify right side
    10,643.55x = 90,583,255.02
  5. Step 5: Solve for x
    x = 90,583,255.02/10,643.55
  6. Step 6: Final answer
    x = 8,510.62

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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.