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Finding the Fourth Proportional to 19,787,714.40, 29,686,820.40 and 7,006,886.40

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Solution

The fourth proportional to 19,787,714.40, 29,686,820.40 and 7,006,886.40 is: 10,512,188.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787,714.40 : 29,686,820.40 = 7,006,886.40 : x
  2. Step 2: Convert to fraction form
    19,787,714.40/29,686,820.40 = 7,006,886.40/x
  3. Step 3: Cross multiply
    19,787,714.40x = 29,686,820.40 × 7,006,886.40
  4. Step 4: Simplify right side
    19,787,714.40x = 208,012,178,120,002.56
  5. Step 5: Solve for x
    x = 208,012,178,120,002.56/19,787,714.40
  6. Step 6: Final answer
    x = 10,512,188.22

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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.