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Finding the Fourth Proportional to 35,603.35, 53,436.71 and 18,977.11

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Solution

The fourth proportional to 35,603.35, 53,436.71 and 18,977.11 is: 28,482.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,603.35 : 53,436.71 = 18,977.11 : x
  2. Step 2: Convert to fraction form
    35,603.35/53,436.71 = 18,977.11/x
  3. Step 3: Cross multiply
    35,603.35x = 53,436.71 × 18,977.11
  4. Step 4: Simplify right side
    35,603.35x = 1,014,074,228.82
  5. Step 5: Solve for x
    x = 1,014,074,228.82/35,603.35
  6. Step 6: Final answer
    x = 28,482.55

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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.