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Finding the Fourth Proportional to 8,700.48, 12,009.60 and 6,048

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Solution

The fourth proportional to 8,700.48, 12,009.60 and 6,048 is: 8,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.48 : 12,009.60 = 6,048 : x
  2. Step 2: Convert to fraction form
    8,700.48/12,009.60 = 6,048/x
  3. Step 3: Cross multiply
    8,700.48x = 12,009.60 × 6,048
  4. Step 4: Simplify right side
    8,700.48x = 72,634,060.80
  5. Step 5: Solve for x
    x = 72,634,060.80/8,700.48
  6. Step 6: Final answer
    x = 8,348.28

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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.