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Finding the Fourth Proportional to 4,340.53, 6,510.70 and 1,053.64

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Solution

The fourth proportional to 4,340.53, 6,510.70 and 1,053.64 is: 1,580.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,340.53 : 6,510.70 = 1,053.64 : x
  2. Step 2: Convert to fraction form
    4,340.53/6,510.70 = 1,053.64/x
  3. Step 3: Cross multiply
    4,340.53x = 6,510.70 × 1,053.64
  4. Step 4: Simplify right side
    4,340.53x = 6,859,933.95
  5. Step 5: Solve for x
    x = 6,859,933.95/4,340.53
  6. Step 6: Final answer
    x = 1,580.44

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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.