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Finding the Fourth Proportional to 16,608,657.20, 24,912,985.80 and 9,778,218.80

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Solution

The fourth proportional to 16,608,657.20, 24,912,985.80 and 9,778,218.80 is: 14,667,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,608,657.20 : 24,912,985.80 = 9,778,218.80 : x
  2. Step 2: Convert to fraction form
    16,608,657.20/24,912,985.80 = 9,778,218.80/x
  3. Step 3: Cross multiply
    16,608,657.20x = 24,912,985.80 × 9,778,218.80
  4. Step 4: Simplify right side
    16,608,657.20x = 243,604,626,113,693.06
  5. Step 5: Solve for x
    x = 243,604,626,113,693.06/16,608,657.20
  6. Step 6: Final answer
    x = 14,667,328.20

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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.