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Finding the Third Proportional to 7,799,482.13 and 12,171,389.91

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Solution

The third proportional to 7,799,482.13 and 12,171,389.91 is: 18,993,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799,482.13 : 12,171,389.91 = 12,171,389.91 : x
  2. Step 2: Convert to fraction form
    7,799,482.13/12,171,389.91 = 12,171,389.91/x
  3. Step 3: Cross multiply
    7,799,482.13x = 12,171,389.91 × 12,171,389.91
  4. Step 4: Simplify right side
    7,799,482.13x = 148,142,732,249,964.38
  5. Step 5: Solve for x
    x = 148,142,732,249,964.38/7,799,482.13
  6. Step 6: Final answer
    x = 18,993,919.07

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.