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Finding the Fourth Proportional to 8,500,551.60, 12,750,827.40 and 5,477,242.80

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Solution

The fourth proportional to 8,500,551.60, 12,750,827.40 and 5,477,242.80 is: 8,215,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500,551.60 : 12,750,827.40 = 5,477,242.80 : x
  2. Step 2: Convert to fraction form
    8,500,551.60/12,750,827.40 = 5,477,242.80/x
  3. Step 3: Cross multiply
    8,500,551.60x = 12,750,827.40 × 5,477,242.80
  4. Step 4: Simplify right side
    8,500,551.60x = 69,839,377,570,692.72
  5. Step 5: Solve for x
    x = 69,839,377,570,692.72/8,500,551.60
  6. Step 6: Final answer
    x = 8,215,864.20

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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.