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Finding the Fourth Proportional to 8,549.68, 12,807.48 and 5,619.10

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Solution

The fourth proportional to 8,549.68, 12,807.48 and 5,619.10 is: 8,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549.68 : 12,807.48 = 5,619.10 : x
  2. Step 2: Convert to fraction form
    8,549.68/12,807.48 = 5,619.10/x
  3. Step 3: Cross multiply
    8,549.68x = 12,807.48 × 5,619.10
  4. Step 4: Simplify right side
    8,549.68x = 71,966,510.87
  5. Step 5: Solve for x
    x = 71,966,510.87/8,549.68
  6. Step 6: Final answer
    x = 8,417.45

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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.