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Finding the Fourth Proportional to 39,305.66, 58,956.66 and 13,010.63

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Solution

The fourth proportional to 39,305.66, 58,956.66 and 13,010.63 is: 19,515.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,305.66 : 58,956.66 = 13,010.63 : x
  2. Step 2: Convert to fraction form
    39,305.66/58,956.66 = 13,010.63/x
  3. Step 3: Cross multiply
    39,305.66x = 58,956.66 × 13,010.63
  4. Step 4: Simplify right side
    39,305.66x = 767,062,994.51
  5. Step 5: Solve for x
    x = 767,062,994.51/39,305.66
  6. Step 6: Final answer
    x = 19,515.33

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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.