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Finding the Fourth Proportional to 29,111.70, 43,667.55 and 13,559.70

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Solution

The fourth proportional to 29,111.70, 43,667.55 and 13,559.70 is: 20,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,111.70 : 43,667.55 = 13,559.70 : x
  2. Step 2: Convert to fraction form
    29,111.70/43,667.55 = 13,559.70/x
  3. Step 3: Cross multiply
    29,111.70x = 43,667.55 × 13,559.70
  4. Step 4: Simplify right side
    29,111.70x = 592,118,877.74
  5. Step 5: Solve for x
    x = 592,118,877.74/29,111.70
  6. Step 6: Final answer
    x = 20,339.55

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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.