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Finding the Fourth Proportional to 72,318.30, 108,477.45 and 32,952.30

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Solution

The fourth proportional to 72,318.30, 108,477.45 and 32,952.30 is: 49,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,318.30 : 108,477.45 = 32,952.30 : x
  2. Step 2: Convert to fraction form
    72,318.30/108,477.45 = 32,952.30/x
  3. Step 3: Cross multiply
    72,318.30x = 108,477.45 × 32,952.30
  4. Step 4: Simplify right side
    72,318.30x = 3,574,581,475.64
  5. Step 5: Solve for x
    x = 3,574,581,475.64/72,318.30
  6. Step 6: Final answer
    x = 49,428.45

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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.