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Finding the Fourth Proportional to 35,445.79, 48,915.21 and 19,313.02

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Solution

The fourth proportional to 35,445.79, 48,915.21 and 19,313.02 is: 26,651.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,445.79 : 48,915.21 = 19,313.02 : x
  2. Step 2: Convert to fraction form
    35,445.79/48,915.21 = 19,313.02/x
  3. Step 3: Cross multiply
    35,445.79x = 48,915.21 × 19,313.02
  4. Step 4: Simplify right side
    35,445.79x = 944,700,429.03
  5. Step 5: Solve for x
    x = 944,700,429.03/35,445.79
  6. Step 6: Final answer
    x = 26,651.98

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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.