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Finding the Fourth Proportional to 58,673.80, 87,989.10 and 19,232.20

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Solution

The fourth proportional to 58,673.80, 87,989.10 and 19,232.20 is: 28,841.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,673.80 : 87,989.10 = 19,232.20 : x
  2. Step 2: Convert to fraction form
    58,673.80/87,989.10 = 19,232.20/x
  3. Step 3: Cross multiply
    58,673.80x = 87,989.10 × 19,232.20
  4. Step 4: Simplify right side
    58,673.80x = 1,692,223,969.02
  5. Step 5: Solve for x
    x = 1,692,223,969.02/58,673.80
  6. Step 6: Final answer
    x = 28,841.22

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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.