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Finding the Fourth Proportional to 35,312.95, 48,741.12 and 21,876.58

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Solution

The fourth proportional to 35,312.95, 48,741.12 and 21,876.58 is: 30,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,312.95 : 48,741.12 = 21,876.58 : x
  2. Step 2: Convert to fraction form
    35,312.95/48,741.12 = 21,876.58/x
  3. Step 3: Cross multiply
    35,312.95x = 48,741.12 × 21,876.58
  4. Step 4: Simplify right side
    35,312.95x = 1,066,289,010.97
  5. Step 5: Solve for x
    x = 1,066,289,010.97/35,312.95
  6. Step 6: Final answer
    x = 30,195.41

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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.