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Finding the Fourth Proportional to 47,151.90, 65,070.84 and 25,931.70

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Solution

The fourth proportional to 47,151.90, 65,070.84 and 25,931.70 is: 35,786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,151.90 : 65,070.84 = 25,931.70 : x
  2. Step 2: Convert to fraction form
    47,151.90/65,070.84 = 25,931.70/x
  3. Step 3: Cross multiply
    47,151.90x = 65,070.84 × 25,931.70
  4. Step 4: Simplify right side
    47,151.90x = 1,687,397,501.63
  5. Step 5: Solve for x
    x = 1,687,397,501.63/47,151.90
  6. Step 6: Final answer
    x = 35,786.42

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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.