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Finding the Fourth Proportional to 18,393,953.90, 27,590,930.85 and 18,393,953.90

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Solution

The fourth proportional to 18,393,953.90, 27,590,930.85 and 18,393,953.90 is: 27,590,930.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393,953.90 : 27,590,930.85 = 18,393,953.90 : x
  2. Step 2: Convert to fraction form
    18,393,953.90/27,590,930.85 = 18,393,953.90/x
  3. Step 3: Cross multiply
    18,393,953.90x = 27,590,930.85 × 18,393,953.90
  4. Step 4: Simplify right side
    18,393,953.90x = 507,506,310,112,987.81
  5. Step 5: Solve for x
    x = 507,506,310,112,987.81/18,393,953.90
  6. Step 6: Final answer
    x = 27,590,930.85

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1.5x scale

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.