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Finding the Fourth Proportional to 9,788,701.68, 13,504,639.68 and 7,216,498.08

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Solution

The fourth proportional to 9,788,701.68, 13,504,639.68 and 7,216,498.08 is: 9,955,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,788,701.68 : 13,504,639.68 = 7,216,498.08 : x
  2. Step 2: Convert to fraction form
    9,788,701.68/13,504,639.68 = 7,216,498.08/x
  3. Step 3: Cross multiply
    9,788,701.68x = 13,504,639.68 × 7,216,498.08
  4. Step 4: Simplify right side
    9,788,701.68x = 97,456,206,321,811.81
  5. Step 5: Solve for x
    x = 97,456,206,321,811.81/9,788,701.68
  6. Step 6: Final answer
    x = 9,955,989.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.