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Finding the Fourth Proportional to 45,853, 63,278.10 and 25,981

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Solution

The fourth proportional to 45,853, 63,278.10 and 25,981 is: 35,854.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,853 : 63,278.10 = 25,981 : x
  2. Step 2: Convert to fraction form
    45,853/63,278.10 = 25,981/x
  3. Step 3: Cross multiply
    45,853x = 63,278.10 × 25,981
  4. Step 4: Simplify right side
    45,853x = 1,644,028,316.10
  5. Step 5: Solve for x
    x = 1,644,028,316.10/45,853
  6. Step 6: Final answer
    x = 35,854.32

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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.