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Finding the Fourth Proportional to 15,601,980.80, 23,371,478.40 and 15,601,980.80

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Solution

The fourth proportional to 15,601,980.80, 23,371,478.40 and 15,601,980.80 is: 23,371,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,601,980.80 : 23,371,478.40 = 15,601,980.80 : x
  2. Step 2: Convert to fraction form
    15,601,980.80/23,371,478.40 = 15,601,980.80/x
  3. Step 3: Cross multiply
    15,601,980.80x = 23,371,478.40 × 15,601,980.80
  4. Step 4: Simplify right side
    15,601,980.80x = 364,641,357,264,414.69
  5. Step 5: Solve for x
    x = 364,641,357,264,414.69/15,601,980.80
  6. Step 6: Final answer
    x = 23,371,478.40

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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.