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Finding the Fourth Proportional to 66,013.68, 91,098.90 and 35,798.99

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Solution

The fourth proportional to 66,013.68, 91,098.90 and 35,798.99 is: 49,402.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,013.68 : 91,098.90 = 35,798.99 : x
  2. Step 2: Convert to fraction form
    66,013.68/91,098.90 = 35,798.99/x
  3. Step 3: Cross multiply
    66,013.68x = 91,098.90 × 35,798.99
  4. Step 4: Simplify right side
    66,013.68x = 3,261,248,610.11
  5. Step 5: Solve for x
    x = 3,261,248,610.11/66,013.68
  6. Step 6: Final answer
    x = 49,402.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.