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Finding the Fourth Proportional to 65,753.32, 98,642.36 and 21,392.76

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Solution

The fourth proportional to 65,753.32, 98,642.36 and 21,392.76 is: 32,093.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,753.32 : 98,642.36 = 21,392.76 : x
  2. Step 2: Convert to fraction form
    65,753.32/98,642.36 = 21,392.76/x
  3. Step 3: Cross multiply
    65,753.32x = 98,642.36 × 21,392.76
  4. Step 4: Simplify right side
    65,753.32x = 2,110,232,081.51
  5. Step 5: Solve for x
    x = 2,110,232,081.51/65,753.32
  6. Step 6: Final answer
    x = 32,093.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.