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Finding the Fourth Proportional to 7,053,432.21, 9,733,843.10 and 3,956,642.03

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Solution

The fourth proportional to 7,053,432.21, 9,733,843.10 and 3,956,642.03 is: 5,460,225.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,053,432.21 : 9,733,843.10 = 3,956,642.03 : x
  2. Step 2: Convert to fraction form
    7,053,432.21/9,733,843.10 = 3,956,642.03/x
  3. Step 3: Cross multiply
    7,053,432.21x = 9,733,843.10 × 3,956,642.03
  4. Step 4: Simplify right side
    7,053,432.21x = 38,513,332,757,111.70
  5. Step 5: Solve for x
    x = 38,513,332,757,111.70/7,053,432.21
  6. Step 6: Final answer
    x = 5,460,225.83

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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.