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Finding the Fourth Proportional to 19,471.52, 26,870.70 and 10,519.02

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Solution

The fourth proportional to 19,471.52, 26,870.70 and 10,519.02 is: 14,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.52 : 26,870.70 = 10,519.02 : x
  2. Step 2: Convert to fraction form
    19,471.52/26,870.70 = 10,519.02/x
  3. Step 3: Cross multiply
    19,471.52x = 26,870.70 × 10,519.02
  4. Step 4: Simplify right side
    19,471.52x = 282,653,430.71
  5. Step 5: Solve for x
    x = 282,653,430.71/19,471.52
  6. Step 6: Final answer
    x = 14,516.25

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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.