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Finding the Fourth Proportional to 38,851,290.40, 54,471,432.80 and 38,851,290.40

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Solution

The fourth proportional to 38,851,290.40, 54,471,432.80 and 38,851,290.40 is: 54,471,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,851,290.40 : 54,471,432.80 = 38,851,290.40 : x
  2. Step 2: Convert to fraction form
    38,851,290.40/54,471,432.80 = 38,851,290.40/x
  3. Step 3: Cross multiply
    38,851,290.40x = 54,471,432.80 × 38,851,290.40
  4. Step 4: Simplify right side
    38,851,290.40x = 2,116,285,454,216,885
  5. Step 5: Solve for x
    x = 2,116,285,454,216,885/38,851,290.40
  6. Step 6: Final answer
    x = 54,471,432.80

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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.