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Finding the Fourth Proportional to 15,662,951.80, 23,494,427.70 and 11,411,423.80

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Solution

The fourth proportional to 15,662,951.80, 23,494,427.70 and 11,411,423.80 is: 17,117,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662,951.80 : 23,494,427.70 = 11,411,423.80 : x
  2. Step 2: Convert to fraction form
    15,662,951.80/23,494,427.70 = 11,411,423.80/x
  3. Step 3: Cross multiply
    15,662,951.80x = 23,494,427.70 × 11,411,423.80
  4. Step 4: Simplify right side
    15,662,951.80x = 268,104,871,423,159.28
  5. Step 5: Solve for x
    x = 268,104,871,423,159.28/15,662,951.80
  6. Step 6: Final answer
    x = 17,117,135.70

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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.