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Finding the Fourth Proportional to 66,312.27, 99,484.61 and 33,040.71

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Solution

The fourth proportional to 66,312.27, 99,484.61 and 33,040.71 is: 49,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,312.27 : 99,484.61 = 33,040.71 : x
  2. Step 2: Convert to fraction form
    66,312.27/99,484.61 = 33,040.71/x
  3. Step 3: Cross multiply
    66,312.27x = 99,484.61 × 33,040.71
  4. Step 4: Simplify right side
    66,312.27x = 3,287,041,983.27
  5. Step 5: Solve for x
    x = 3,287,041,983.27/66,312.27
  6. Step 6: Final answer
    x = 49,569.14

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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.