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Finding the Fourth Proportional to 17,718,390.40, 24,872,931.20 and 17,718,390.40

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Solution

The fourth proportional to 17,718,390.40, 24,872,931.20 and 17,718,390.40 is: 24,872,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,718,390.40 : 24,872,931.20 = 17,718,390.40 : x
  2. Step 2: Convert to fraction form
    17,718,390.40/24,872,931.20 = 17,718,390.40/x
  3. Step 3: Cross multiply
    17,718,390.40x = 24,872,931.20 × 17,718,390.40
  4. Step 4: Simplify right side
    17,718,390.40x = 440,708,305,393,940.44
  5. Step 5: Solve for x
    x = 440,708,305,393,940.44/17,718,390.40
  6. Step 6: Final answer
    x = 24,872,931.20

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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.