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Finding the Fourth Proportional to 7,047,870.40, 10,571,805.60 and 6,870,723.40

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Solution

The fourth proportional to 7,047,870.40, 10,571,805.60 and 6,870,723.40 is: 10,306,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047,870.40 : 10,571,805.60 = 6,870,723.40 : x
  2. Step 2: Convert to fraction form
    7,047,870.40/10,571,805.60 = 6,870,723.40/x
  3. Step 3: Cross multiply
    7,047,870.40x = 10,571,805.60 × 6,870,723.40
  4. Step 4: Simplify right side
    7,047,870.40x = 72,635,952,116,171.05
  5. Step 5: Solve for x
    x = 72,635,952,116,171.05/7,047,870.40
  6. Step 6: Final answer
    x = 10,306,085.10

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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.