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Finding the Fourth Proportional to 46,988.64, 64,851.84 and 28,131.84

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Solution

The fourth proportional to 46,988.64, 64,851.84 and 28,131.84 is: 38,826.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,988.64 : 64,851.84 = 28,131.84 : x
  2. Step 2: Convert to fraction form
    46,988.64/64,851.84 = 28,131.84/x
  3. Step 3: Cross multiply
    46,988.64x = 64,851.84 × 28,131.84
  4. Step 4: Simplify right side
    46,988.64x = 1,824,401,586.59
  5. Step 5: Solve for x
    x = 1,824,401,586.59/46,988.64
  6. Step 6: Final answer
    x = 38,826.44

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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.