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Finding the Fourth Proportional to 66,653.89, 99,870.11 and 46,890.92

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Solution

The fourth proportional to 66,653.89, 99,870.11 and 46,890.92 is: 70,258.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.89 : 99,870.11 = 46,890.92 : x
  2. Step 2: Convert to fraction form
    66,653.89/99,870.11 = 46,890.92/x
  3. Step 3: Cross multiply
    66,653.89x = 99,870.11 × 46,890.92
  4. Step 4: Simplify right side
    66,653.89x = 4,683,001,529.46
  5. Step 5: Solve for x
    x = 4,683,001,529.46/66,653.89
  6. Step 6: Final answer
    x = 70,258.49

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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.