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Finding the Fourth Proportional to 42,585.59, 63,886.08 and 17,612.08

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Solution

The fourth proportional to 42,585.59, 63,886.08 and 17,612.08 is: 26,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,585.59 : 63,886.08 = 17,612.08 : x
  2. Step 2: Convert to fraction form
    42,585.59/63,886.08 = 17,612.08/x
  3. Step 3: Cross multiply
    42,585.59x = 63,886.08 × 17,612.08
  4. Step 4: Simplify right side
    42,585.59x = 1,125,166,751.85
  5. Step 5: Solve for x
    x = 1,125,166,751.85/42,585.59
  6. Step 6: Final answer
    x = 26,421.30

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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.