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Finding the Fourth Proportional to 82,875.40, 124,313.10 and 27,471.40

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Solution

The fourth proportional to 82,875.40, 124,313.10 and 27,471.40 is: 41,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,875.40 : 124,313.10 = 27,471.40 : x
  2. Step 2: Convert to fraction form
    82,875.40/124,313.10 = 27,471.40/x
  3. Step 3: Cross multiply
    82,875.40x = 124,313.10 × 27,471.40
  4. Step 4: Simplify right side
    82,875.40x = 3,415,054,895.34
  5. Step 5: Solve for x
    x = 3,415,054,895.34/82,875.40
  6. Step 6: Final answer
    x = 41,207.10

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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.