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Finding the Fourth Proportional to 35,130.87, 48,480 and 19,214.99

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Solution

The fourth proportional to 35,130.87, 48,480 and 19,214.99 is: 26,516.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,130.87 : 48,480 = 19,214.99 : x
  2. Step 2: Convert to fraction form
    35,130.87/48,480 = 19,214.99/x
  3. Step 3: Cross multiply
    35,130.87x = 48,480 × 19,214.99
  4. Step 4: Simplify right side
    35,130.87x = 931,542,472.80
  5. Step 5: Solve for x
    x = 931,542,472.80/35,130.87
  6. Step 6: Final answer
    x = 26,516.35

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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.