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Finding the Fourth Proportional to 13,264.16, 18,298.42 and 8,482.88

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Solution

The fourth proportional to 13,264.16, 18,298.42 and 8,482.88 is: 11,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,264.16 : 18,298.42 = 8,482.88 : x
  2. Step 2: Convert to fraction form
    13,264.16/18,298.42 = 8,482.88/x
  3. Step 3: Cross multiply
    13,264.16x = 18,298.42 × 8,482.88
  4. Step 4: Simplify right side
    13,264.16x = 155,223,301.05
  5. Step 5: Solve for x
    x = 155,223,301.05/13,264.16
  6. Step 6: Final answer
    x = 11,702.46

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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.