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Finding the Fourth Proportional to 22,263.51, 30,661.70 and 17,209.11

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Solution

The fourth proportional to 22,263.51, 30,661.70 and 17,209.11 is: 23,700.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,263.51 : 30,661.70 = 17,209.11 : x
  2. Step 2: Convert to fraction form
    22,263.51/30,661.70 = 17,209.11/x
  3. Step 3: Cross multiply
    22,263.51x = 30,661.70 × 17,209.11
  4. Step 4: Simplify right side
    22,263.51x = 527,660,482.04
  5. Step 5: Solve for x
    x = 527,660,482.04/22,263.51
  6. Step 6: Final answer
    x = 23,700.69

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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.