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Finding the Fourth Proportional to 7,761,632.10, 10,633,473.92 and 7,470,728.12

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Solution

The fourth proportional to 7,761,632.10, 10,633,473.92 and 7,470,728.12 is: 10,234,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761,632.10 : 10,633,473.92 = 7,470,728.12 : x
  2. Step 2: Convert to fraction form
    7,761,632.10/10,633,473.92 = 7,470,728.12/x
  3. Step 3: Cross multiply
    7,761,632.10x = 10,633,473.92 × 7,470,728.12
  4. Step 4: Simplify right side
    7,761,632.10x = 79,439,792,627,430.62
  5. Step 5: Solve for x
    x = 79,439,792,627,430.62/7,761,632.10
  6. Step 6: Final answer
    x = 10,234,934.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.