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Finding the Fourth Proportional to 9,259,873.58, 13,886,865.89 and 8,655,368.70

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Solution

The fourth proportional to 9,259,873.58, 13,886,865.89 and 8,655,368.70 is: 12,980,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,259,873.58 : 13,886,865.89 = 8,655,368.70 : x
  2. Step 2: Convert to fraction form
    9,259,873.58/13,886,865.89 = 8,655,368.70/x
  3. Step 3: Cross multiply
    9,259,873.58x = 13,886,865.89 × 8,655,368.70
  4. Step 4: Simplify right side
    9,259,873.58x = 120,195,944,406,660.17
  5. Step 5: Solve for x
    x = 120,195,944,406,660.17/9,259,873.58
  6. Step 6: Final answer
    x = 12,980,300.80

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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.