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Finding the Fourth Proportional to 7,223,813.66, 9,968,810.16 and 3,960,574.56

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Solution

The fourth proportional to 7,223,813.66, 9,968,810.16 and 3,960,574.56 is: 5,465,564.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223,813.66 : 9,968,810.16 = 3,960,574.56 : x
  2. Step 2: Convert to fraction form
    7,223,813.66/9,968,810.16 = 3,960,574.56/x
  3. Step 3: Cross multiply
    7,223,813.66x = 9,968,810.16 × 3,960,574.56
  4. Step 4: Simplify right side
    7,223,813.66x = 39,482,215,913,165.53
  5. Step 5: Solve for x
    x = 39,482,215,913,165.53/7,223,813.66
  6. Step 6: Final answer
    x = 5,465,564.00

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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.