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Finding the Fourth Proportional to 82,688.91, 124,038.84 and 32,768.82

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Solution

The fourth proportional to 82,688.91, 124,038.84 and 32,768.82 is: 49,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,688.91 : 124,038.84 = 32,768.82 : x
  2. Step 2: Convert to fraction form
    82,688.91/124,038.84 = 32,768.82/x
  3. Step 3: Cross multiply
    82,688.91x = 124,038.84 × 32,768.82
  4. Step 4: Simplify right side
    82,688.91x = 4,064,606,420.97
  5. Step 5: Solve for x
    x = 4,064,606,420.97/82,688.91
  6. Step 6: Final answer
    x = 49,155.40

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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.