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Finding the Fourth Proportional to 19,360, 26,717.04 and 10,528

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Solution

The fourth proportional to 19,360, 26,717.04 and 10,528 is: 14,528.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,360 : 26,717.04 = 10,528 : x
  2. Step 2: Convert to fraction form
    19,360/26,717.04 = 10,528/x
  3. Step 3: Cross multiply
    19,360x = 26,717.04 × 10,528
  4. Step 4: Simplify right side
    19,360x = 281,276,997.12
  5. Step 5: Solve for x
    x = 281,276,997.12/19,360
  6. Step 6: Final answer
    x = 14,528.77

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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.