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Finding the Fourth Proportional to 15,044.16, 20,762.64 and 8,760.48

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Solution

The fourth proportional to 15,044.16, 20,762.64 and 8,760.48 is: 12,090.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.16 : 20,762.64 = 8,760.48 : x
  2. Step 2: Convert to fraction form
    15,044.16/20,762.64 = 8,760.48/x
  3. Step 3: Cross multiply
    15,044.16x = 20,762.64 × 8,760.48
  4. Step 4: Simplify right side
    15,044.16x = 181,890,692.47
  5. Step 5: Solve for x
    x = 181,890,692.47/15,044.16
  6. Step 6: Final answer
    x = 12,090.45

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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.