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Finding the Fourth Proportional to 38,959.32, 53,763.90 and 24,820.40

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Solution

The fourth proportional to 38,959.32, 53,763.90 and 24,820.40 is: 34,252.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,959.32 : 53,763.90 = 24,820.40 : x
  2. Step 2: Convert to fraction form
    38,959.32/53,763.90 = 24,820.40/x
  3. Step 3: Cross multiply
    38,959.32x = 53,763.90 × 24,820.40
  4. Step 4: Simplify right side
    38,959.32x = 1,334,441,503.56
  5. Step 5: Solve for x
    x = 1,334,441,503.56/38,959.32
  6. Step 6: Final answer
    x = 34,252.18

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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.