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Finding the Fourth Proportional to 10,959,896.40, 15,369,049.20 and 10,959,896.40

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Solution

The fourth proportional to 10,959,896.40, 15,369,049.20 and 10,959,896.40 is: 15,369,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959,896.40 : 15,369,049.20 = 10,959,896.40 : x
  2. Step 2: Convert to fraction form
    10,959,896.40/15,369,049.20 = 10,959,896.40/x
  3. Step 3: Cross multiply
    10,959,896.40x = 15,369,049.20 × 10,959,896.40
  4. Step 4: Simplify right side
    10,959,896.40x = 168,443,186,998,502.88
  5. Step 5: Solve for x
    x = 168,443,186,998,502.88/10,959,896.40
  6. Step 6: Final answer
    x = 15,369,049.20

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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.