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Finding the Fourth Proportional to 8,700.84, 13,053.42 and 3,510.36

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Solution

The fourth proportional to 8,700.84, 13,053.42 and 3,510.36 is: 5,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.84 : 13,053.42 = 3,510.36 : x
  2. Step 2: Convert to fraction form
    8,700.84/13,053.42 = 3,510.36/x
  3. Step 3: Cross multiply
    8,700.84x = 13,053.42 × 3,510.36
  4. Step 4: Simplify right side
    8,700.84x = 45,822,203.43
  5. Step 5: Solve for x
    x = 45,822,203.43/8,700.84
  6. Step 6: Final answer
    x = 5,266.41

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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.