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Finding the Fourth Proportional to 7,803,687.60, 11,700,865.80 and 4,024,551.60

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Solution

The fourth proportional to 7,803,687.60, 11,700,865.80 and 4,024,551.60 is: 6,034,421.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803,687.60 : 11,700,865.80 = 4,024,551.60 : x
  2. Step 2: Convert to fraction form
    7,803,687.60/11,700,865.80 = 4,024,551.60/x
  3. Step 3: Cross multiply
    7,803,687.60x = 11,700,865.80 × 4,024,551.60
  4. Step 4: Simplify right side
    7,803,687.60x = 47,090,738,176,775.28
  5. Step 5: Solve for x
    x = 47,090,738,176,775.28/7,803,687.60
  6. Step 6: Final answer
    x = 6,034,421.24

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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.