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Finding the Fourth Proportional to 19,510.79, 26,924.80 and 10,558.30

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Solution

The fourth proportional to 19,510.79, 26,924.80 and 10,558.30 is: 14,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,510.79 : 26,924.80 = 10,558.30 : x
  2. Step 2: Convert to fraction form
    19,510.79/26,924.80 = 10,558.30/x
  3. Step 3: Cross multiply
    19,510.79x = 26,924.80 × 10,558.30
  4. Step 4: Simplify right side
    19,510.79x = 284,279,928.42
  5. Step 5: Solve for x
    x = 284,279,928.42/19,510.79
  6. Step 6: Final answer
    x = 14,570.40

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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.