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Finding the Fourth Proportional to 86,605.37, 129,916.34 and 24,275.69

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Solution

The fourth proportional to 86,605.37, 129,916.34 and 24,275.69 is: 36,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,605.37 : 129,916.34 = 24,275.69 : x
  2. Step 2: Convert to fraction form
    86,605.37/129,916.34 = 24,275.69/x
  3. Step 3: Cross multiply
    86,605.37x = 129,916.34 × 24,275.69
  4. Step 4: Simplify right side
    86,605.37x = 3,153,808,795.77
  5. Step 5: Solve for x
    x = 3,153,808,795.77/86,605.37
  6. Step 6: Final answer
    x = 36,415.86

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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.