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Finding the Fourth Proportional to 9,907,710.60, 14,861,565.90 and 8,396,056.20

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Solution

The fourth proportional to 9,907,710.60, 14,861,565.90 and 8,396,056.20 is: 12,594,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907,710.60 : 14,861,565.90 = 8,396,056.20 : x
  2. Step 2: Convert to fraction form
    9,907,710.60/14,861,565.90 = 8,396,056.20/x
  3. Step 3: Cross multiply
    9,907,710.60x = 14,861,565.90 × 8,396,056.20
  4. Step 4: Simplify right side
    9,907,710.60x = 124,778,542,516,403.58
  5. Step 5: Solve for x
    x = 124,778,542,516,403.58/9,907,710.60
  6. Step 6: Final answer
    x = 12,594,084.30

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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.