Home / 56,005.10-84,007.65-39,383.90

Finding the Fourth Proportional to 56,005.10, 84,007.65 and 39,383.90

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Solution

The fourth proportional to 56,005.10, 84,007.65 and 39,383.90 is: 59,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,005.10 : 84,007.65 = 39,383.90 : x
  2. Step 2: Convert to fraction form
    56,005.10/84,007.65 = 39,383.90/x
  3. Step 3: Cross multiply
    56,005.10x = 84,007.65 × 39,383.90
  4. Step 4: Simplify right side
    56,005.10x = 3,308,548,886.84
  5. Step 5: Solve for x
    x = 3,308,548,886.84/56,005.10
  6. Step 6: Final answer
    x = 59,075.85

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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.