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Finding the Fourth Proportional to 15,662,531.20, 23,465,803.20 and 13,423,043.20

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Solution

The fourth proportional to 15,662,531.20, 23,465,803.20 and 13,423,043.20 is: 20,110,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662,531.20 : 23,465,803.20 = 13,423,043.20 : x
  2. Step 2: Convert to fraction form
    15,662,531.20/23,465,803.20 = 13,423,043.20/x
  3. Step 3: Cross multiply
    15,662,531.20x = 23,465,803.20 × 13,423,043.20
  4. Step 4: Simplify right side
    15,662,531.20x = 314,982,490,076,298.19
  5. Step 5: Solve for x
    x = 314,982,490,076,298.19/15,662,531.20
  6. Step 6: Final answer
    x = 20,110,573.83

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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.