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Finding the Fourth Proportional to 39,774.48, 59,591.48 and 21,013.08

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Solution

The fourth proportional to 39,774.48, 59,591.48 and 21,013.08 is: 31,482.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,774.48 : 59,591.48 = 21,013.08 : x
  2. Step 2: Convert to fraction form
    39,774.48/59,591.48 = 21,013.08/x
  3. Step 3: Cross multiply
    39,774.48x = 59,591.48 × 21,013.08
  4. Step 4: Simplify right side
    39,774.48x = 1,252,200,536.56
  5. Step 5: Solve for x
    x = 1,252,200,536.56/39,774.48
  6. Step 6: Final answer
    x = 31,482.51

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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.