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Finding the Fourth Proportional to 76,587.57, 105,675.21 and 44,750.32

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Solution

The fourth proportional to 76,587.57, 105,675.21 and 44,750.32 is: 61,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,587.57 : 105,675.21 = 44,750.32 : x
  2. Step 2: Convert to fraction form
    76,587.57/105,675.21 = 44,750.32/x
  3. Step 3: Cross multiply
    76,587.57x = 105,675.21 × 44,750.32
  4. Step 4: Simplify right side
    76,587.57x = 4,728,999,595.66
  5. Step 5: Solve for x
    x = 4,728,999,595.66/76,587.57
  6. Step 6: Final answer
    x = 61,746.30

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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.