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Finding the Fourth Proportional to 47,407.65, 65,422.78 and 25,897.69

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Solution

The fourth proportional to 47,407.65, 65,422.78 and 25,897.69 is: 35,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,407.65 : 65,422.78 = 25,897.69 : x
  2. Step 2: Convert to fraction form
    47,407.65/65,422.78 = 25,897.69/x
  3. Step 3: Cross multiply
    47,407.65x = 65,422.78 × 25,897.69
  4. Step 4: Simplify right side
    47,407.65x = 1,694,298,875.38
  5. Step 5: Solve for x
    x = 1,694,298,875.38/47,407.65
  6. Step 6: Final answer
    x = 35,738.93

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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.