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Finding the Fourth Proportional to 7,881,602.40, 11,813,072.40 and 3,332,642.40

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Solution

The fourth proportional to 7,881,602.40, 11,813,072.40 and 3,332,642.40 is: 4,995,018.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,602.40 : 11,813,072.40 = 3,332,642.40 : x
  2. Step 2: Convert to fraction form
    7,881,602.40/11,813,072.40 = 3,332,642.40/x
  3. Step 3: Cross multiply
    7,881,602.40x = 11,813,072.40 × 3,332,642.40
  4. Step 4: Simplify right side
    7,881,602.40x = 39,368,745,954,509.76
  5. Step 5: Solve for x
    x = 39,368,745,954,509.76/7,881,602.40
  6. Step 6: Final answer
    x = 4,995,018.01

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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.