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Finding the Fourth Proportional to 18,169,688.80, 27,254,533.20 and 14,922,431.20

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Solution

The fourth proportional to 18,169,688.80, 27,254,533.20 and 14,922,431.20 is: 22,383,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169,688.80 : 27,254,533.20 = 14,922,431.20 : x
  2. Step 2: Convert to fraction form
    18,169,688.80/27,254,533.20 = 14,922,431.20/x
  3. Step 3: Cross multiply
    18,169,688.80x = 27,254,533.20 × 14,922,431.20
  4. Step 4: Simplify right side
    18,169,688.80x = 406,703,896,565,115.81
  5. Step 5: Solve for x
    x = 406,703,896,565,115.81/18,169,688.80
  6. Step 6: Final answer
    x = 22,383,646.80

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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.