Home / 56,000.18-83,999.18-13,880.34

Finding the Fourth Proportional to 56,000.18, 83,999.18 and 13,880.34

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Solution

The fourth proportional to 56,000.18, 83,999.18 and 13,880.34 is: 20,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,000.18 : 83,999.18 = 13,880.34 : x
  2. Step 2: Convert to fraction form
    56,000.18/83,999.18 = 13,880.34/x
  3. Step 3: Cross multiply
    56,000.18x = 83,999.18 × 13,880.34
  4. Step 4: Simplify right side
    56,000.18x = 1,165,937,527.82
  5. Step 5: Solve for x
    x = 1,165,937,527.82/56,000.18
  6. Step 6: Final answer
    x = 20,820.25

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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.