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Finding the Fourth Proportional to 22,140.61, 30,554.01 and 12,069.07

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Solution

The fourth proportional to 22,140.61, 30,554.01 and 12,069.07 is: 16,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.61 : 30,554.01 = 12,069.07 : x
  2. Step 2: Convert to fraction form
    22,140.61/30,554.01 = 12,069.07/x
  3. Step 3: Cross multiply
    22,140.61x = 30,554.01 × 12,069.07
  4. Step 4: Simplify right side
    22,140.61x = 368,758,485.47
  5. Step 5: Solve for x
    x = 368,758,485.47/22,140.61
  6. Step 6: Final answer
    x = 16,655.30

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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.