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Finding the Fourth Proportional to 30,658,694.40, 45,967,046.40 and 14,492,390.40

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Solution

The fourth proportional to 30,658,694.40, 45,967,046.40 and 14,492,390.40 is: 21,728,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,658,694.40 : 45,967,046.40 = 14,492,390.40 : x
  2. Step 2: Convert to fraction form
    30,658,694.40/45,967,046.40 = 14,492,390.40/x
  3. Step 3: Cross multiply
    30,658,694.40x = 45,967,046.40 × 14,492,390.40
  4. Step 4: Simplify right side
    30,658,694.40x = 666,172,381,963,714.50
  5. Step 5: Solve for x
    x = 666,172,381,963,714.50/30,658,694.40
  6. Step 6: Final answer
    x = 21,728,661.15

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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.