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Finding the Fourth Proportional to 7,703.88, 10,631.28 and 4,167.08

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Solution

The fourth proportional to 7,703.88, 10,631.28 and 4,167.08 is: 5,750.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,703.88 : 10,631.28 = 4,167.08 : x
  2. Step 2: Convert to fraction form
    7,703.88/10,631.28 = 4,167.08/x
  3. Step 3: Cross multiply
    7,703.88x = 10,631.28 × 4,167.08
  4. Step 4: Simplify right side
    7,703.88x = 44,301,396.60
  5. Step 5: Solve for x
    x = 44,301,396.60/7,703.88
  6. Step 6: Final answer
    x = 5,750.53

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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.