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Finding the Fourth Proportional to 39,865,570.90, 55,962,964.70 and 39,865,570.90

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Solution

The fourth proportional to 39,865,570.90, 55,962,964.70 and 39,865,570.90 is: 55,962,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865,570.90 : 55,962,964.70 = 39,865,570.90 : x
  2. Step 2: Convert to fraction form
    39,865,570.90/55,962,964.70 = 39,865,570.90/x
  3. Step 3: Cross multiply
    39,865,570.90x = 55,962,964.70 × 39,865,570.90
  4. Step 4: Simplify right side
    39,865,570.90x = 2,230,995,537,022,047.25
  5. Step 5: Solve for x
    x = 2,230,995,537,022,047.25/39,865,570.90
  6. Step 6: Final answer
    x = 55,962,964.70

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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.