Home / 66,345.60-99,505.32-19,585.92

Finding the Fourth Proportional to 66,345.60, 99,505.32 and 19,585.92

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Solution

The fourth proportional to 66,345.60, 99,505.32 and 19,585.92 is: 29,375.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,345.60 : 99,505.32 = 19,585.92 : x
  2. Step 2: Convert to fraction form
    66,345.60/99,505.32 = 19,585.92/x
  3. Step 3: Cross multiply
    66,345.60x = 99,505.32 × 19,585.92
  4. Step 4: Simplify right side
    66,345.60x = 1,948,903,237.09
  5. Step 5: Solve for x
    x = 1,948,903,237.09/66,345.60
  6. Step 6: Final answer
    x = 29,375.02

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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.