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Finding the Fourth Proportional to 45,776.81, 68,977.13 and 37,639.12

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Solution

The fourth proportional to 45,776.81, 68,977.13 and 37,639.12 is: 56,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,776.81 : 68,977.13 = 37,639.12 : x
  2. Step 2: Convert to fraction form
    45,776.81/68,977.13 = 37,639.12/x
  3. Step 3: Cross multiply
    45,776.81x = 68,977.13 × 37,639.12
  4. Step 4: Simplify right side
    45,776.81x = 2,596,238,607.98
  5. Step 5: Solve for x
    x = 2,596,238,607.98/45,776.81
  6. Step 6: Final answer
    x = 56,715.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.