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Finding the Fourth Proportional to 65,921.42, 98,886.71 and 26,478.52

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Solution

The fourth proportional to 65,921.42, 98,886.71 and 26,478.52 is: 39,719.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921.42 : 98,886.71 = 26,478.52 : x
  2. Step 2: Convert to fraction form
    65,921.42/98,886.71 = 26,478.52/x
  3. Step 3: Cross multiply
    65,921.42x = 98,886.71 × 26,478.52
  4. Step 4: Simplify right side
    65,921.42x = 2,618,373,547.45
  5. Step 5: Solve for x
    x = 2,618,373,547.45/65,921.42
  6. Step 6: Final answer
    x = 39,719.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.