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Finding the Fourth Proportional to 9,909,113.10, 14,863,669.65 and 8,397,458.70

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Solution

The fourth proportional to 9,909,113.10, 14,863,669.65 and 8,397,458.70 is: 12,596,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,909,113.10 : 14,863,669.65 = 8,397,458.70 : x
  2. Step 2: Convert to fraction form
    9,909,113.10/14,863,669.65 = 8,397,458.70/x
  3. Step 3: Cross multiply
    9,909,113.10x = 14,863,669.65 × 8,397,458.70
  4. Step 4: Simplify right side
    9,909,113.10x = 124,817,052,016,318.45
  5. Step 5: Solve for x
    x = 124,817,052,016,318.45/9,909,113.10
  6. Step 6: Final answer
    x = 12,596,188.05

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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.