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Finding the Fourth Proportional to 7,369.59, 11,056.38 and 2,990.10

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Solution

The fourth proportional to 7,369.59, 11,056.38 and 2,990.10 is: 4,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.59 : 11,056.38 = 2,990.10 : x
  2. Step 2: Convert to fraction form
    7,369.59/11,056.38 = 2,990.10/x
  3. Step 3: Cross multiply
    7,369.59x = 11,056.38 × 2,990.10
  4. Step 4: Simplify right side
    7,369.59x = 33,059,681.84
  5. Step 5: Solve for x
    x = 33,059,681.84/7,369.59
  6. Step 6: Final answer
    x = 4,485.96

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Half scale
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Double scale
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Similar ratio
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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.