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Finding the Fourth Proportional to 14,482.64, 19,995.90 and 10,965.08

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Solution

The fourth proportional to 14,482.64, 19,995.90 and 10,965.08 is: 15,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,482.64 : 19,995.90 = 10,965.08 : x
  2. Step 2: Convert to fraction form
    14,482.64/19,995.90 = 10,965.08/x
  3. Step 3: Cross multiply
    14,482.64x = 19,995.90 × 10,965.08
  4. Step 4: Simplify right side
    14,482.64x = 219,256,643.17
  5. Step 5: Solve for x
    x = 219,256,643.17/14,482.64
  6. Step 6: Final answer
    x = 15,139.27

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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.