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Finding the Fourth Proportional to 11,869,711.60, 17,804,567.40 and 10,771,400.20

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Solution

The fourth proportional to 11,869,711.60, 17,804,567.40 and 10,771,400.20 is: 16,157,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869,711.60 : 17,804,567.40 = 10,771,400.20 : x
  2. Step 2: Convert to fraction form
    11,869,711.60/17,804,567.40 = 10,771,400.20/x
  3. Step 3: Cross multiply
    11,869,711.60x = 17,804,567.40 × 10,771,400.20
  4. Step 4: Simplify right side
    11,869,711.60x = 191,780,120,853,273.44
  5. Step 5: Solve for x
    x = 191,780,120,853,273.44/11,869,711.60
  6. Step 6: Final answer
    x = 16,157,100.30

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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.