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Finding the Fourth Proportional to 66,535.64, 99,799.68 and 40,233.32

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Solution

The fourth proportional to 66,535.64, 99,799.68 and 40,233.32 is: 60,347.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,535.64 : 99,799.68 = 40,233.32 : x
  2. Step 2: Convert to fraction form
    66,535.64/99,799.68 = 40,233.32/x
  3. Step 3: Cross multiply
    66,535.64x = 99,799.68 × 40,233.32
  4. Step 4: Simplify right side
    66,535.64x = 4,015,272,461.34
  5. Step 5: Solve for x
    x = 4,015,272,461.34/66,535.64
  6. Step 6: Final answer
    x = 60,347.69

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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.