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Finding the Fourth Proportional to 4,748.67, 7,118.31 and 4,088.25

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Solution

The fourth proportional to 4,748.67, 7,118.31 and 4,088.25 is: 6,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.67 : 7,118.31 = 4,088.25 : x
  2. Step 2: Convert to fraction form
    4,748.67/7,118.31 = 4,088.25/x
  3. Step 3: Cross multiply
    4,748.67x = 7,118.31 × 4,088.25
  4. Step 4: Simplify right side
    4,748.67x = 29,101,430.86
  5. Step 5: Solve for x
    x = 29,101,430.86/4,748.67
  6. Step 6: Final answer
    x = 6,128.33

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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.