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Finding the Fourth Proportional to 51,663.68, 77,318.57 and 35,886.50

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Solution

The fourth proportional to 51,663.68, 77,318.57 and 35,886.50 is: 53,706.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,663.68 : 77,318.57 = 35,886.50 : x
  2. Step 2: Convert to fraction form
    51,663.68/77,318.57 = 35,886.50/x
  3. Step 3: Cross multiply
    51,663.68x = 77,318.57 × 35,886.50
  4. Step 4: Simplify right side
    51,663.68x = 2,774,692,862.31
  5. Step 5: Solve for x
    x = 2,774,692,862.31/51,663.68
  6. Step 6: Final answer
    x = 53,706.84

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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.