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Finding the Fourth Proportional to 19,300.13, 26,390.98 and 19,300.13

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Solution

The fourth proportional to 19,300.13, 26,390.98 and 19,300.13 is: 26,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,300.13 : 26,390.98 = 19,300.13 : x
  2. Step 2: Convert to fraction form
    19,300.13/26,390.98 = 19,300.13/x
  3. Step 3: Cross multiply
    19,300.13x = 26,390.98 × 19,300.13
  4. Step 4: Simplify right side
    19,300.13x = 509,349,227.40
  5. Step 5: Solve for x
    x = 509,349,227.40/19,300.13
  6. Step 6: Final answer
    x = 26,390.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.