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Finding the Fourth Proportional to 35,479.63, 48,962.19 and 19,564.66

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Solution

The fourth proportional to 35,479.63, 48,962.19 and 19,564.66 is: 26,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.63 : 48,962.19 = 19,564.66 : x
  2. Step 2: Convert to fraction form
    35,479.63/48,962.19 = 19,564.66/x
  3. Step 3: Cross multiply
    35,479.63x = 48,962.19 × 19,564.66
  4. Step 4: Simplify right side
    35,479.63x = 957,928,600.21
  5. Step 5: Solve for x
    x = 957,928,600.21/35,479.63
  6. Step 6: Final answer
    x = 26,999.40

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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.