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Finding the Fourth Proportional to 52,363, 78,495.81 and 19,075.51

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Solution

The fourth proportional to 52,363, 78,495.81 and 19,075.51 is: 28,595.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,363 : 78,495.81 = 19,075.51 : x
  2. Step 2: Convert to fraction form
    52,363/78,495.81 = 19,075.51/x
  3. Step 3: Cross multiply
    52,363x = 78,495.81 × 19,075.51
  4. Step 4: Simplify right side
    52,363x = 1,497,347,608.61
  5. Step 5: Solve for x
    x = 1,497,347,608.61/52,363
  6. Step 6: Final answer
    x = 28,595.53

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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.