Home / 34,623.10-47,779.63-20,475.64

Finding the Fourth Proportional to 34,623.10, 47,779.63 and 20,475.64

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Solution

The fourth proportional to 34,623.10, 47,779.63 and 20,475.64 is: 28,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,623.10 : 47,779.63 = 20,475.64 : x
  2. Step 2: Convert to fraction form
    34,623.10/47,779.63 = 20,475.64/x
  3. Step 3: Cross multiply
    34,623.10x = 47,779.63 × 20,475.64
  4. Step 4: Simplify right side
    34,623.10x = 978,318,503.21
  5. Step 5: Solve for x
    x = 978,318,503.21/34,623.10
  6. Step 6: Final answer
    x = 28,256.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.