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Finding the Fourth Proportional to 10,526.80, 15,776.80 and 5,598.80

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Solution

The fourth proportional to 10,526.80, 15,776.80 and 5,598.80 is: 8,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,526.80 : 15,776.80 = 5,598.80 : x
  2. Step 2: Convert to fraction form
    10,526.80/15,776.80 = 5,598.80/x
  3. Step 3: Cross multiply
    10,526.80x = 15,776.80 × 5,598.80
  4. Step 4: Simplify right side
    10,526.80x = 88,331,147.84
  5. Step 5: Solve for x
    x = 88,331,147.84/10,526.80
  6. Step 6: Final answer
    x = 8,391.07

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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.