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Finding the Fourth Proportional to 15,046.16, 20,765.40 and 8,762.48

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Solution

The fourth proportional to 15,046.16, 20,765.40 and 8,762.48 is: 12,093.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.16 : 20,765.40 = 8,762.48 : x
  2. Step 2: Convert to fraction form
    15,046.16/20,765.40 = 8,762.48/x
  3. Step 3: Cross multiply
    15,046.16x = 20,765.40 × 8,762.48
  4. Step 4: Simplify right side
    15,046.16x = 181,956,402.19
  5. Step 5: Solve for x
    x = 181,956,402.19/15,046.16
  6. Step 6: Final answer
    x = 12,093.21

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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.