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Finding the Fourth Proportional to 42,687.76, 58,929.04 and 24,779.32

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Solution

The fourth proportional to 42,687.76, 58,929.04 and 24,779.32 is: 34,207.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,687.76 : 58,929.04 = 24,779.32 : x
  2. Step 2: Convert to fraction form
    42,687.76/58,929.04 = 24,779.32/x
  3. Step 3: Cross multiply
    42,687.76x = 58,929.04 × 24,779.32
  4. Step 4: Simplify right side
    42,687.76x = 1,460,221,539.45
  5. Step 5: Solve for x
    x = 1,460,221,539.45/42,687.76
  6. Step 6: Final answer
    x = 34,207.03

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1.5x scale

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.