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Finding the Fourth Proportional to 19,308, 26,645.28 and 10,924.32

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Solution

The fourth proportional to 19,308, 26,645.28 and 10,924.32 is: 15,075.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,308 : 26,645.28 = 10,924.32 : x
  2. Step 2: Convert to fraction form
    19,308/26,645.28 = 10,924.32/x
  3. Step 3: Cross multiply
    19,308x = 26,645.28 × 10,924.32
  4. Step 4: Simplify right side
    19,308x = 291,081,565.21
  5. Step 5: Solve for x
    x = 291,081,565.21/19,308
  6. Step 6: Final answer
    x = 15,075.70

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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.