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Finding the Fourth Proportional to 7,381.63, 10,188.08 and 4,859.29

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Solution

The fourth proportional to 7,381.63, 10,188.08 and 4,859.29 is: 6,706.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.63 : 10,188.08 = 4,859.29 : x
  2. Step 2: Convert to fraction form
    7,381.63/10,188.08 = 4,859.29/x
  3. Step 3: Cross multiply
    7,381.63x = 10,188.08 × 4,859.29
  4. Step 4: Simplify right side
    7,381.63x = 49,506,835.26
  5. Step 5: Solve for x
    x = 49,506,835.26/7,381.63
  6. Step 6: Final answer
    x = 6,706.76

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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.