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Finding the Fourth Proportional to 7,249,795.20, 10,874,347.20 and 2,457,014.40

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Solution

The fourth proportional to 7,249,795.20, 10,874,347.20 and 2,457,014.40 is: 3,685,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249,795.20 : 10,874,347.20 = 2,457,014.40 : x
  2. Step 2: Convert to fraction form
    7,249,795.20/10,874,347.20 = 2,457,014.40/x
  3. Step 3: Cross multiply
    7,249,795.20x = 10,874,347.20 × 2,457,014.40
  4. Step 4: Simplify right side
    7,249,795.20x = 26,718,427,660,999.68
  5. Step 5: Solve for x
    x = 26,718,427,660,999.68/7,249,795.20
  6. Step 6: Final answer
    x = 3,685,404.47

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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.