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Finding the Fourth Proportional to 46,798.80, 70,177.72 and 13,959.12

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Solution

The fourth proportional to 46,798.80, 70,177.72 and 13,959.12 is: 20,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,798.80 : 70,177.72 = 13,959.12 : x
  2. Step 2: Convert to fraction form
    46,798.80/70,177.72 = 13,959.12/x
  3. Step 3: Cross multiply
    46,798.80x = 70,177.72 × 13,959.12
  4. Step 4: Simplify right side
    46,798.80x = 979,619,214.81
  5. Step 5: Solve for x
    x = 979,619,214.81/46,798.80
  6. Step 6: Final answer
    x = 20,932.57

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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.