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Finding the Fourth Proportional to 18,448,553.60, 27,672,830.40 and 11,746,678.40

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Solution

The fourth proportional to 18,448,553.60, 27,672,830.40 and 11,746,678.40 is: 17,620,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448,553.60 : 27,672,830.40 = 11,746,678.40 : x
  2. Step 2: Convert to fraction form
    18,448,553.60/27,672,830.40 = 11,746,678.40/x
  3. Step 3: Cross multiply
    18,448,553.60x = 27,672,830.40 × 11,746,678.40
  4. Step 4: Simplify right side
    18,448,553.60x = 325,063,839,126,543.38
  5. Step 5: Solve for x
    x = 325,063,839,126,543.38/18,448,553.60
  6. Step 6: Final answer
    x = 17,620,017.60

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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.