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Finding the Fourth Proportional to 9,939,891.70, 14,888,842.35 and 9,939,891.70

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Solution

The fourth proportional to 9,939,891.70, 14,888,842.35 and 9,939,891.70 is: 14,888,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939,891.70 : 14,888,842.35 = 9,939,891.70 : x
  2. Step 2: Convert to fraction form
    9,939,891.70/14,888,842.35 = 9,939,891.70/x
  3. Step 3: Cross multiply
    9,939,891.70x = 14,888,842.35 × 9,939,891.70
  4. Step 4: Simplify right side
    9,939,891.70x = 147,993,480,497,373.47
  5. Step 5: Solve for x
    x = 147,993,480,497,373.47/9,939,891.70
  6. Step 6: Final answer
    x = 14,888,842.35

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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.