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Finding the Fourth Proportional to 18,608,700.84, 25,680,021.80 and 10,348,582.88

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Solution

The fourth proportional to 18,608,700.84, 25,680,021.80 and 10,348,582.88 is: 14,281,052.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608,700.84 : 25,680,021.80 = 10,348,582.88 : x
  2. Step 2: Convert to fraction form
    18,608,700.84/25,680,021.80 = 10,348,582.88/x
  3. Step 3: Cross multiply
    18,608,700.84x = 25,680,021.80 × 10,348,582.88
  4. Step 4: Simplify right side
    18,608,700.84x = 265,751,833,957,506.81
  5. Step 5: Solve for x
    x = 265,751,833,957,506.81/18,608,700.84
  6. Step 6: Final answer
    x = 14,281,052.52

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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.