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Finding the Fourth Proportional to 22,011,978.80, 33,017,968.20 and 14,359,228.40

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Solution

The fourth proportional to 22,011,978.80, 33,017,968.20 and 14,359,228.40 is: 21,538,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,011,978.80 : 33,017,968.20 = 14,359,228.40 : x
  2. Step 2: Convert to fraction form
    22,011,978.80/33,017,968.20 = 14,359,228.40/x
  3. Step 3: Cross multiply
    22,011,978.80x = 33,017,968.20 × 14,359,228.40
  4. Step 4: Simplify right side
    22,011,978.80x = 474,112,546,687,736.88
  5. Step 5: Solve for x
    x = 474,112,546,687,736.88/22,011,978.80
  6. Step 6: Final answer
    x = 21,538,842.60

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1.5x scale

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.