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Finding the Fourth Proportional to 21,448,468.40, 32,172,702.60 and 21,448,468.40

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Solution

The fourth proportional to 21,448,468.40, 32,172,702.60 and 21,448,468.40 is: 32,172,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448,468.40 : 32,172,702.60 = 21,448,468.40 : x
  2. Step 2: Convert to fraction form
    21,448,468.40/32,172,702.60 = 21,448,468.40/x
  3. Step 3: Cross multiply
    21,448,468.40x = 32,172,702.60 × 21,448,468.40
  4. Step 4: Simplify right side
    21,448,468.40x = 690,055,195,058,697.88
  5. Step 5: Solve for x
    x = 690,055,195,058,697.88/21,448,468.40
  6. Step 6: Final answer
    x = 32,172,702.60

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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.