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Finding the Fourth Proportional to 39,312.80, 58,904.40 and 32,703.20

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Solution

The fourth proportional to 39,312.80, 58,904.40 and 32,703.20 is: 49,000.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.80 : 58,904.40 = 32,703.20 : x
  2. Step 2: Convert to fraction form
    39,312.80/58,904.40 = 32,703.20/x
  3. Step 3: Cross multiply
    39,312.80x = 58,904.40 × 32,703.20
  4. Step 4: Simplify right side
    39,312.80x = 1,926,362,374.08
  5. Step 5: Solve for x
    x = 1,926,362,374.08/39,312.80
  6. Step 6: Final answer
    x = 49,000.89

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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.