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Finding the Fourth Proportional to 35,603.86, 53,437.88 and 18,977.74

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Solution

The fourth proportional to 35,603.86, 53,437.88 and 18,977.74 is: 28,483.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,603.86 : 53,437.88 = 18,977.74 : x
  2. Step 2: Convert to fraction form
    35,603.86/53,437.88 = 18,977.74/x
  3. Step 3: Cross multiply
    35,603.86x = 53,437.88 × 18,977.74
  4. Step 4: Simplify right side
    35,603.86x = 1,014,129,973.05
  5. Step 5: Solve for x
    x = 1,014,129,973.05/35,603.86
  6. Step 6: Final answer
    x = 28,483.71

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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.