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Finding the Fourth Proportional to 7,956,689.28, 10,971,542.28 and 5,373,885.96

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Solution

The fourth proportional to 7,956,689.28, 10,971,542.28 and 5,373,885.96 is: 7,410,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956,689.28 : 10,971,542.28 = 5,373,885.96 : x
  2. Step 2: Convert to fraction form
    7,956,689.28/10,971,542.28 = 5,373,885.96/x
  3. Step 3: Cross multiply
    7,956,689.28x = 10,971,542.28 × 5,373,885.96
  4. Step 4: Simplify right side
    7,956,689.28x = 58,959,817,018,038.38
  5. Step 5: Solve for x
    x = 58,959,817,018,038.38/7,956,689.28
  6. Step 6: Final answer
    x = 7,410,094.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.