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Finding the Fourth Proportional to 7,240,866.40, 10,851,968.40 and 5,549,586.40

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Solution

The fourth proportional to 7,240,866.40, 10,851,968.40 and 5,549,586.40 is: 8,317,227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240,866.40 : 10,851,968.40 = 5,549,586.40 : x
  2. Step 2: Convert to fraction form
    7,240,866.40/10,851,968.40 = 5,549,586.40/x
  3. Step 3: Cross multiply
    7,240,866.40x = 10,851,968.40 × 5,549,586.40
  4. Step 4: Simplify right side
    7,240,866.40x = 60,223,936,245,869.77
  5. Step 5: Solve for x
    x = 60,223,936,245,869.77/7,240,866.40
  6. Step 6: Final answer
    x = 8,317,227.93

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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.