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Finding the Fourth Proportional to 12,100,953.20, 16,953,931.60 and 12,100,953.20

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Solution

The fourth proportional to 12,100,953.20, 16,953,931.60 and 12,100,953.20 is: 16,953,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100,953.20 : 16,953,931.60 = 12,100,953.20 : x
  2. Step 2: Convert to fraction form
    12,100,953.20/16,953,931.60 = 12,100,953.20/x
  3. Step 3: Cross multiply
    12,100,953.20x = 16,953,931.60 × 12,100,953.20
  4. Step 4: Simplify right side
    12,100,953.20x = 205,158,732,847,601.12
  5. Step 5: Solve for x
    x = 205,158,732,847,601.12/12,100,953.20
  6. Step 6: Final answer
    x = 16,953,931.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.