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Finding the Fourth Proportional to 13,851,036.15, 20,776,554.23 and 13,851,036.15

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Solution

The fourth proportional to 13,851,036.15, 20,776,554.23 and 13,851,036.15 is: 20,776,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851,036.15 : 20,776,554.23 = 13,851,036.15 : x
  2. Step 2: Convert to fraction form
    13,851,036.15/20,776,554.23 = 13,851,036.15/x
  3. Step 3: Cross multiply
    13,851,036.15x = 20,776,554.23 × 13,851,036.15
  4. Step 4: Simplify right side
    13,851,036.15x = 287,776,803,642,910.25
  5. Step 5: Solve for x
    x = 287,776,803,642,910.25/13,851,036.15
  6. Step 6: Final answer
    x = 20,776,554.23

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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.