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Finding the Fourth Proportional to 58,277.20, 80,420.20 and 34,411.56

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Solution

The fourth proportional to 58,277.20, 80,420.20 and 34,411.56 is: 47,486.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,277.20 : 80,420.20 = 34,411.56 : x
  2. Step 2: Convert to fraction form
    58,277.20/80,420.20 = 34,411.56/x
  3. Step 3: Cross multiply
    58,277.20x = 80,420.20 × 34,411.56
  4. Step 4: Simplify right side
    58,277.20x = 2,767,384,537.51
  5. Step 5: Solve for x
    x = 2,767,384,537.51/58,277.20
  6. Step 6: Final answer
    x = 47,486.57

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1.5x scale

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.