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Finding the Fourth Proportional to 34,784,690.60, 52,177,035.90 and 21,870,674.30

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Solution

The fourth proportional to 34,784,690.60, 52,177,035.90 and 21,870,674.30 is: 32,806,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,784,690.60 : 52,177,035.90 = 21,870,674.30 : x
  2. Step 2: Convert to fraction form
    34,784,690.60/52,177,035.90 = 21,870,674.30/x
  3. Step 3: Cross multiply
    34,784,690.60x = 52,177,035.90 × 21,870,674.30
  4. Step 4: Simplify right side
    34,784,690.60x = 1,141,146,958,108,307.50
  5. Step 5: Solve for x
    x = 1,141,146,958,108,307.50/34,784,690.60
  6. Step 6: Final answer
    x = 32,806,011.45

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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.