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Finding the Fourth Proportional to 10,890,019.30, 16,335,028.95 and 10,039,713.70

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Solution

The fourth proportional to 10,890,019.30, 16,335,028.95 and 10,039,713.70 is: 15,059,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,019.30 : 16,335,028.95 = 10,039,713.70 : x
  2. Step 2: Convert to fraction form
    10,890,019.30/16,335,028.95 = 10,039,713.70/x
  3. Step 3: Cross multiply
    10,890,019.30x = 16,335,028.95 × 10,039,713.70
  4. Step 4: Simplify right side
    10,890,019.30x = 163,999,013,939,211.59
  5. Step 5: Solve for x
    x = 163,999,013,939,211.59/10,890,019.30
  6. Step 6: Final answer
    x = 15,059,570.55

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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.