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Finding the Fourth Proportional to 26,971,915.20, 40,457,872.80 and 10,800,362.40

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Solution

The fourth proportional to 26,971,915.20, 40,457,872.80 and 10,800,362.40 is: 16,200,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,971,915.20 : 40,457,872.80 = 10,800,362.40 : x
  2. Step 2: Convert to fraction form
    26,971,915.20/40,457,872.80 = 10,800,362.40/x
  3. Step 3: Cross multiply
    26,971,915.20x = 40,457,872.80 × 10,800,362.40
  4. Step 4: Simplify right side
    26,971,915.20x = 436,959,688,173,102.69
  5. Step 5: Solve for x
    x = 436,959,688,173,102.69/26,971,915.20
  6. Step 6: Final answer
    x = 16,200,543.60

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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.