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Finding the Fourth Proportional to 66,341.52, 99,498.60 and 21,957.84

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Solution

The fourth proportional to 66,341.52, 99,498.60 and 21,957.84 is: 32,932.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,341.52 : 99,498.60 = 21,957.84 : x
  2. Step 2: Convert to fraction form
    66,341.52/99,498.60 = 21,957.84/x
  3. Step 3: Cross multiply
    66,341.52x = 99,498.60 × 21,957.84
  4. Step 4: Simplify right side
    66,341.52x = 2,184,774,339.02
  5. Step 5: Solve for x
    x = 2,184,774,339.02/66,341.52
  6. Step 6: Final answer
    x = 32,932.23

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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.