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Finding the Fourth Proportional to 66,032.68, 99,065.60 and 30,931.44

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Solution

The fourth proportional to 66,032.68, 99,065.60 and 30,931.44 is: 46,404.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,032.68 : 99,065.60 = 30,931.44 : x
  2. Step 2: Convert to fraction form
    66,032.68/99,065.60 = 30,931.44/x
  3. Step 3: Cross multiply
    66,032.68x = 99,065.60 × 30,931.44
  4. Step 4: Simplify right side
    66,032.68x = 3,064,241,662.46
  5. Step 5: Solve for x
    x = 3,064,241,662.46/66,032.68
  6. Step 6: Final answer
    x = 46,404.93

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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.