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Finding the Fourth Proportional to 7,369.92, 11,056.08 and 2,987.76

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Solution

The fourth proportional to 7,369.92, 11,056.08 and 2,987.76 is: 4,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.92 : 11,056.08 = 2,987.76 : x
  2. Step 2: Convert to fraction form
    7,369.92/11,056.08 = 2,987.76/x
  3. Step 3: Cross multiply
    7,369.92x = 11,056.08 × 2,987.76
  4. Step 4: Simplify right side
    7,369.92x = 33,032,913.58
  5. Step 5: Solve for x
    x = 33,032,913.58/7,369.92
  6. Step 6: Final answer
    x = 4,482.13

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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.