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Finding the Fourth Proportional to 22,335,643.80, 31,206,128.40 and 22,335,643.80

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Solution

The fourth proportional to 22,335,643.80, 31,206,128.40 and 22,335,643.80 is: 31,206,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,335,643.80 : 31,206,128.40 = 22,335,643.80 : x
  2. Step 2: Convert to fraction form
    22,335,643.80/31,206,128.40 = 22,335,643.80/x
  3. Step 3: Cross multiply
    22,335,643.80x = 31,206,128.40 × 22,335,643.80
  4. Step 4: Simplify right side
    22,335,643.80x = 697,008,968,319,463.88
  5. Step 5: Solve for x
    x = 697,008,968,319,463.88/22,335,643.80
  6. Step 6: Final answer
    x = 31,206,128.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.