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Finding the Fourth Proportional to 8,872,538.40, 13,308,764.40 and 3,477,376.80

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Solution

The fourth proportional to 8,872,538.40, 13,308,764.40 and 3,477,376.80 is: 5,216,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872,538.40 : 13,308,764.40 = 3,477,376.80 : x
  2. Step 2: Convert to fraction form
    8,872,538.40/13,308,764.40 = 3,477,376.80/x
  3. Step 3: Cross multiply
    8,872,538.40x = 13,308,764.40 × 3,477,376.80
  4. Step 4: Simplify right side
    8,872,538.40x = 46,279,588,561,225.92
  5. Step 5: Solve for x
    x = 46,279,588,561,225.92/8,872,538.40
  6. Step 6: Final answer
    x = 5,216,048.27

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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.