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Finding the Fourth Proportional to 8,308,235.60, 12,462,353.40 and 5,116,965.20

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Solution

The fourth proportional to 8,308,235.60, 12,462,353.40 and 5,116,965.20 is: 7,675,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308,235.60 : 12,462,353.40 = 5,116,965.20 : x
  2. Step 2: Convert to fraction form
    8,308,235.60/12,462,353.40 = 5,116,965.20/x
  3. Step 3: Cross multiply
    8,308,235.60x = 12,462,353.40 × 5,116,965.20
  4. Step 4: Simplify right side
    8,308,235.60x = 63,769,428,657,901.69
  5. Step 5: Solve for x
    x = 63,769,428,657,901.69/8,308,235.60
  6. Step 6: Final answer
    x = 7,675,447.80

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1.5x scale

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.