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Finding the Fourth Proportional to 61,039.84, 91,464.72 and 29,415.68

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Solution

The fourth proportional to 61,039.84, 91,464.72 and 29,415.68 is: 44,077.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,039.84 : 91,464.72 = 29,415.68 : x
  2. Step 2: Convert to fraction form
    61,039.84/91,464.72 = 29,415.68/x
  3. Step 3: Cross multiply
    61,039.84x = 91,464.72 × 29,415.68
  4. Step 4: Simplify right side
    61,039.84x = 2,690,496,934.81
  5. Step 5: Solve for x
    x = 2,690,496,934.81/61,039.84
  6. Step 6: Final answer
    x = 44,077.72

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1.5x scale

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.