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Finding the Fourth Proportional to 7,368.53, 10,167.08 and 7,115.39

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Solution

The fourth proportional to 7,368.53, 10,167.08 and 7,115.39 is: 9,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.53 : 10,167.08 = 7,115.39 : x
  2. Step 2: Convert to fraction form
    7,368.53/10,167.08 = 7,115.39/x
  3. Step 3: Cross multiply
    7,368.53x = 10,167.08 × 7,115.39
  4. Step 4: Simplify right side
    7,368.53x = 72,342,746.99
  5. Step 5: Solve for x
    x = 72,342,746.99/7,368.53
  6. Step 6: Final answer
    x = 9,817.80

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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.