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Finding the Fourth Proportional to 15,599.99, 21,528.48 and 8,526.67

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Solution

The fourth proportional to 15,599.99, 21,528.48 and 8,526.67 is: 11,767.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,599.99 : 21,528.48 = 8,526.67 : x
  2. Step 2: Convert to fraction form
    15,599.99/21,528.48 = 8,526.67/x
  3. Step 3: Cross multiply
    15,599.99x = 21,528.48 × 8,526.67
  4. Step 4: Simplify right side
    15,599.99x = 183,566,222.72
  5. Step 5: Solve for x
    x = 183,566,222.72/15,599.99
  6. Step 6: Final answer
    x = 11,767.07

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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.