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Finding the Fourth Proportional to 13,010,844.80, 19,502,270.40 and 4,920,694.40

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Solution

The fourth proportional to 13,010,844.80, 19,502,270.40 and 4,920,694.40 is: 7,375,748.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010,844.80 : 19,502,270.40 = 4,920,694.40 : x
  2. Step 2: Convert to fraction form
    13,010,844.80/19,502,270.40 = 4,920,694.40/x
  3. Step 3: Cross multiply
    13,010,844.80x = 19,502,270.40 × 4,920,694.40
  4. Step 4: Simplify right side
    13,010,844.80x = 95,964,712,744,565.77
  5. Step 5: Solve for x
    x = 95,964,712,744,565.77/13,010,844.80
  6. Step 6: Final answer
    x = 7,375,748.02

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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.