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Finding the Fourth Proportional to 42,955.69, 64,418.08 and 14,868.12

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Solution

The fourth proportional to 42,955.69, 64,418.08 and 14,868.12 is: 22,296.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,955.69 : 64,418.08 = 14,868.12 : x
  2. Step 2: Convert to fraction form
    42,955.69/64,418.08 = 14,868.12/x
  3. Step 3: Cross multiply
    42,955.69x = 64,418.08 × 14,868.12
  4. Step 4: Simplify right side
    42,955.69x = 957,775,743.61
  5. Step 5: Solve for x
    x = 957,775,743.61/42,955.69
  6. Step 6: Final answer
    x = 22,296.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.