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Finding the Fourth Proportional to 46,518.16, 69,779.96 and 16,939.12

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Solution

The fourth proportional to 46,518.16, 69,779.96 and 16,939.12 is: 25,409.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,518.16 : 69,779.96 = 16,939.12 : x
  2. Step 2: Convert to fraction form
    46,518.16/69,779.96 = 16,939.12/x
  3. Step 3: Cross multiply
    46,518.16x = 69,779.96 × 16,939.12
  4. Step 4: Simplify right side
    46,518.16x = 1,182,011,116.04
  5. Step 5: Solve for x
    x = 1,182,011,116.04/46,518.16
  6. Step 6: Final answer
    x = 25,409.67

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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.