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Finding the Fourth Proportional to 18,216,497.22, 25,138,079.22 and 9,956,492.55

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Solution

The fourth proportional to 18,216,497.22, 25,138,079.22 and 9,956,492.55 is: 13,739,584.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216,497.22 : 25,138,079.22 = 9,956,492.55 : x
  2. Step 2: Convert to fraction form
    18,216,497.22/25,138,079.22 = 9,956,492.55/x
  3. Step 3: Cross multiply
    18,216,497.22x = 25,138,079.22 × 9,956,492.55
  4. Step 4: Simplify right side
    18,216,497.22x = 250,287,098,475,239.81
  5. Step 5: Solve for x
    x = 250,287,098,475,239.81/18,216,497.22
  6. Step 6: Final answer
    x = 13,739,584.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.