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Finding the Fourth Proportional to 7,838.68, 11,750.04 and 4,919.04

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Solution

The fourth proportional to 7,838.68, 11,750.04 and 4,919.04 is: 7,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.68 : 11,750.04 = 4,919.04 : x
  2. Step 2: Convert to fraction form
    7,838.68/11,750.04 = 4,919.04/x
  3. Step 3: Cross multiply
    7,838.68x = 11,750.04 × 4,919.04
  4. Step 4: Simplify right side
    7,838.68x = 57,798,916.76
  5. Step 5: Solve for x
    x = 57,798,916.76/7,838.68
  6. Step 6: Final answer
    x = 7,373.55

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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.