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Finding the Fourth Proportional to 7,291.10, 10,880.54 and 7,197.95

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Solution

The fourth proportional to 7,291.10, 10,880.54 and 7,197.95 is: 10,741.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.10 : 10,880.54 = 7,197.95 : x
  2. Step 2: Convert to fraction form
    7,291.10/10,880.54 = 7,197.95/x
  3. Step 3: Cross multiply
    7,291.10x = 10,880.54 × 7,197.95
  4. Step 4: Simplify right side
    7,291.10x = 78,317,492.50
  5. Step 5: Solve for x
    x = 78,317,492.50/7,291.10
  6. Step 6: Final answer
    x = 10,741.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.