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Finding the Fourth Proportional to 36,890,223.80, 55,368,796.80 and 18,707,068.40

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Solution

The fourth proportional to 36,890,223.80, 55,368,796.80 and 18,707,068.40 is: 28,077,570.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,890,223.80 : 55,368,796.80 = 18,707,068.40 : x
  2. Step 2: Convert to fraction form
    36,890,223.80/55,368,796.80 = 18,707,068.40/x
  3. Step 3: Cross multiply
    36,890,223.80x = 55,368,796.80 × 18,707,068.40
  4. Step 4: Simplify right side
    36,890,223.80x = 1,035,787,868,963,301
  5. Step 5: Solve for x
    x = 1,035,787,868,963,301/36,890,223.80
  6. Step 6: Final answer
    x = 28,077,570.76

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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.