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Finding the Fourth Proportional to 7,060.68, 9,743.62 and 3,916.80

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Solution

The fourth proportional to 7,060.68, 9,743.62 and 3,916.80 is: 5,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,060.68 : 9,743.62 = 3,916.80 : x
  2. Step 2: Convert to fraction form
    7,060.68/9,743.62 = 3,916.80/x
  3. Step 3: Cross multiply
    7,060.68x = 9,743.62 × 3,916.80
  4. Step 4: Simplify right side
    7,060.68x = 38,163,810.82
  5. Step 5: Solve for x
    x = 38,163,810.82/7,060.68
  6. Step 6: Final answer
    x = 5,405.12

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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.