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Finding the Fourth Proportional to 14,949,905.40, 20,986,554.60 and 14,949,905.40

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Solution

The fourth proportional to 14,949,905.40, 20,986,554.60 and 14,949,905.40 is: 20,986,554.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,949,905.40 : 20,986,554.60 = 14,949,905.40 : x
  2. Step 2: Convert to fraction form
    14,949,905.40/20,986,554.60 = 14,949,905.40/x
  3. Step 3: Cross multiply
    14,949,905.40x = 20,986,554.60 × 14,949,905.40
  4. Step 4: Simplify right side
    14,949,905.40x = 313,747,005,941,934.88
  5. Step 5: Solve for x
    x = 313,747,005,941,934.88/14,949,905.40
  6. Step 6: Final answer
    x = 20,986,554.60

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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.