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Finding the Fourth Proportional to 66,357.66, 99,302.61 and 41,409.45

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Solution

The fourth proportional to 66,357.66, 99,302.61 and 41,409.45 is: 61,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,357.66 : 99,302.61 = 41,409.45 : x
  2. Step 2: Convert to fraction form
    66,357.66/99,302.61 = 41,409.45/x
  3. Step 3: Cross multiply
    66,357.66x = 99,302.61 × 41,409.45
  4. Step 4: Simplify right side
    66,357.66x = 4,112,066,463.66
  5. Step 5: Solve for x
    x = 4,112,066,463.66/66,357.66
  6. Step 6: Final answer
    x = 61,968.23

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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.