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Finding the Fourth Proportional to 83,012.65, 124,404.76 and 35,570.95

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Solution

The fourth proportional to 83,012.65, 124,404.76 and 35,570.95 is: 53,307.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,012.65 : 124,404.76 = 35,570.95 : x
  2. Step 2: Convert to fraction form
    83,012.65/124,404.76 = 35,570.95/x
  3. Step 3: Cross multiply
    83,012.65x = 124,404.76 × 35,570.95
  4. Step 4: Simplify right side
    83,012.65x = 4,425,195,497.72
  5. Step 5: Solve for x
    x = 4,425,195,497.72/83,012.65
  6. Step 6: Final answer
    x = 53,307.48

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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.