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Finding the Fourth Proportional to 52,973.49, 79,386.33 and 39,810.45

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Solution

The fourth proportional to 52,973.49, 79,386.33 and 39,810.45 is: 59,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,973.49 : 79,386.33 = 39,810.45 : x
  2. Step 2: Convert to fraction form
    52,973.49/79,386.33 = 39,810.45/x
  3. Step 3: Cross multiply
    52,973.49x = 79,386.33 × 39,810.45
  4. Step 4: Simplify right side
    52,973.49x = 3,160,405,521.15
  5. Step 5: Solve for x
    x = 3,160,405,521.15/52,973.49
  6. Step 6: Final answer
    x = 59,660.13

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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.