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Finding the Fourth Proportional to 3,525.70, 4,865.47 and 1,953.80

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Solution

The fourth proportional to 3,525.70, 4,865.47 and 1,953.80 is: 2,696.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,525.70 : 4,865.47 = 1,953.80 : x
  2. Step 2: Convert to fraction form
    3,525.70/4,865.47 = 1,953.80/x
  3. Step 3: Cross multiply
    3,525.70x = 4,865.47 × 1,953.80
  4. Step 4: Simplify right side
    3,525.70x = 9,506,155.29
  5. Step 5: Solve for x
    x = 9,506,155.29/3,525.70
  6. Step 6: Final answer
    x = 2,696.25

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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.