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Finding the Fourth Proportional to 28,800.16, 43,172.16 and 14,008.48

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Solution

The fourth proportional to 28,800.16, 43,172.16 and 14,008.48 is: 20,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.16 : 43,172.16 = 14,008.48 : x
  2. Step 2: Convert to fraction form
    28,800.16/43,172.16 = 14,008.48/x
  3. Step 3: Cross multiply
    28,800.16x = 43,172.16 × 14,008.48
  4. Step 4: Simplify right side
    28,800.16x = 604,776,339.92
  5. Step 5: Solve for x
    x = 604,776,339.92/28,800.16
  6. Step 6: Final answer
    x = 20,999.06

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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.