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Finding the Fourth Proportional to 34,357.58, 47,412.47 and 20,020.58

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Solution

The fourth proportional to 34,357.58, 47,412.47 and 20,020.58 is: 27,627.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,357.58 : 47,412.47 = 20,020.58 : x
  2. Step 2: Convert to fraction form
    34,357.58/47,412.47 = 20,020.58/x
  3. Step 3: Cross multiply
    34,357.58x = 47,412.47 × 20,020.58
  4. Step 4: Simplify right side
    34,357.58x = 949,225,148.63
  5. Step 5: Solve for x
    x = 949,225,148.63/34,357.58
  6. Step 6: Final answer
    x = 27,627.82

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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.