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Finding the Fourth Proportional to 34,315.79, 47,351.79 and 19,209.29

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Solution

The fourth proportional to 34,315.79, 47,351.79 and 19,209.29 is: 26,506.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,315.79 : 47,351.79 = 19,209.29 : x
  2. Step 2: Convert to fraction form
    34,315.79/47,351.79 = 19,209.29/x
  3. Step 3: Cross multiply
    34,315.79x = 47,351.79 × 19,209.29
  4. Step 4: Simplify right side
    34,315.79x = 909,594,266.13
  5. Step 5: Solve for x
    x = 909,594,266.13/34,315.79
  6. Step 6: Final answer
    x = 26,506.58

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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.