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Finding the Fourth Proportional to 18,937,894.02, 28,411,050.88 and 8,835,003.78

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Solution

The fourth proportional to 18,937,894.02, 28,411,050.88 and 8,835,003.78 is: 13,254,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937,894.02 : 28,411,050.88 = 8,835,003.78 : x
  2. Step 2: Convert to fraction form
    18,937,894.02/28,411,050.88 = 8,835,003.78/x
  3. Step 3: Cross multiply
    18,937,894.02x = 28,411,050.88 × 8,835,003.78
  4. Step 4: Simplify right side
    18,937,894.02x = 251,011,741,918,572.31
  5. Step 5: Solve for x
    x = 251,011,741,918,572.31/18,937,894.02
  6. Step 6: Final answer
    x = 13,254,469.67

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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.