Home / 47,085.93-70,638.62-13,807.05

Finding the Fourth Proportional to 47,085.93, 70,638.62 and 13,807.05

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Solution

The fourth proportional to 47,085.93, 70,638.62 and 13,807.05 is: 20,713.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,085.93 : 70,638.62 = 13,807.05 : x
  2. Step 2: Convert to fraction form
    47,085.93/70,638.62 = 13,807.05/x
  3. Step 3: Cross multiply
    47,085.93x = 70,638.62 × 13,807.05
  4. Step 4: Simplify right side
    47,085.93x = 975,310,889.24
  5. Step 5: Solve for x
    x = 975,310,889.24/47,085.93
  6. Step 6: Final answer
    x = 20,713.43

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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.