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Finding the Fourth Proportional to 15,778,869.80, 23,654,480.70 and 10,713,756.20

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Solution

The fourth proportional to 15,778,869.80, 23,654,480.70 and 10,713,756.20 is: 16,061,247.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,778,869.80 : 23,654,480.70 = 10,713,756.20 : x
  2. Step 2: Convert to fraction form
    15,778,869.80/23,654,480.70 = 10,713,756.20/x
  3. Step 3: Cross multiply
    15,778,869.80x = 23,654,480.70 × 10,713,756.20
  4. Step 4: Simplify right side
    15,778,869.80x = 253,428,339,257,405.31
  5. Step 5: Solve for x
    x = 253,428,339,257,405.31/15,778,869.80
  6. Step 6: Final answer
    x = 16,061,247.89

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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.