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Finding the Fourth Proportional to 70,398.56, 105,579.32 and 26,038.01

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Solution

The fourth proportional to 70,398.56, 105,579.32 and 26,038.01 is: 39,050.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,398.56 : 105,579.32 = 26,038.01 : x
  2. Step 2: Convert to fraction form
    70,398.56/105,579.32 = 26,038.01/x
  3. Step 3: Cross multiply
    70,398.56x = 105,579.32 × 26,038.01
  4. Step 4: Simplify right side
    70,398.56x = 2,749,074,731.87
  5. Step 5: Solve for x
    x = 2,749,074,731.87/70,398.56
  6. Step 6: Final answer
    x = 39,050.16

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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.