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Finding the Fourth Proportional to 22,331,981.70, 31,328,547.30 and 22,331,981.70

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Solution

The fourth proportional to 22,331,981.70, 31,328,547.30 and 22,331,981.70 is: 31,328,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,331,981.70 : 31,328,547.30 = 22,331,981.70 : x
  2. Step 2: Convert to fraction form
    22,331,981.70/31,328,547.30 = 22,331,981.70/x
  3. Step 3: Cross multiply
    22,331,981.70x = 31,328,547.30 × 22,331,981.70
  4. Step 4: Simplify right side
    22,331,981.70x = 699,628,544,991,184.38
  5. Step 5: Solve for x
    x = 699,628,544,991,184.38/22,331,981.70
  6. Step 6: Final answer
    x = 31,328,547.30

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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.