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Finding the Fourth Proportional to 38,256,643.80, 53,672,675.40 and 38,256,643.80

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Solution

The fourth proportional to 38,256,643.80, 53,672,675.40 and 38,256,643.80 is: 53,672,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,256,643.80 : 53,672,675.40 = 38,256,643.80 : x
  2. Step 2: Convert to fraction form
    38,256,643.80/53,672,675.40 = 38,256,643.80/x
  3. Step 3: Cross multiply
    38,256,643.80x = 53,672,675.40 × 38,256,643.80
  4. Step 4: Simplify right side
    38,256,643.80x = 2,053,336,424,570,822.25
  5. Step 5: Solve for x
    x = 2,053,336,424,570,822.25/38,256,643.80
  6. Step 6: Final answer
    x = 53,672,675.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.