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Finding the Fourth Proportional to 38,897.10, 54,339.30 and 38,897.10

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Solution

The fourth proportional to 38,897.10, 54,339.30 and 38,897.10 is: 54,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,897.10 : 54,339.30 = 38,897.10 : x
  2. Step 2: Convert to fraction form
    38,897.10/54,339.30 = 38,897.10/x
  3. Step 3: Cross multiply
    38,897.10x = 54,339.30 × 38,897.10
  4. Step 4: Simplify right side
    38,897.10x = 2,113,641,186.03
  5. Step 5: Solve for x
    x = 2,113,641,186.03/38,897.10
  6. Step 6: Final answer
    x = 54,339.30

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1.5x scale

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.