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Finding the Fourth Proportional to 15,752.63, 21,724.02 and 11,496.95

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Solution

The fourth proportional to 15,752.63, 21,724.02 and 11,496.95 is: 15,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,752.63 : 21,724.02 = 11,496.95 : x
  2. Step 2: Convert to fraction form
    15,752.63/21,724.02 = 11,496.95/x
  3. Step 3: Cross multiply
    15,752.63x = 21,724.02 × 11,496.95
  4. Step 4: Simplify right side
    15,752.63x = 249,759,863.12
  5. Step 5: Solve for x
    x = 249,759,863.12/15,752.63
  6. Step 6: Final answer
    x = 15,855.13

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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.