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Finding the Fourth Proportional to 76,551.90, 114,840.16 and 26,646.18

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Solution

The fourth proportional to 76,551.90, 114,840.16 and 26,646.18 is: 39,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,551.90 : 114,840.16 = 26,646.18 : x
  2. Step 2: Convert to fraction form
    76,551.90/114,840.16 = 26,646.18/x
  3. Step 3: Cross multiply
    76,551.90x = 114,840.16 × 26,646.18
  4. Step 4: Simplify right side
    76,551.90x = 3,060,051,574.59
  5. Step 5: Solve for x
    x = 3,060,051,574.59/76,551.90
  6. Step 6: Final answer
    x = 39,973.55

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1.5x scale

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.