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Finding the Fourth Proportional to 15,041.68, 20,759.64 and 8,756.08

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Solution

The fourth proportional to 15,041.68, 20,759.64 and 8,756.08 is: 12,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,041.68 : 20,759.64 = 8,756.08 : x
  2. Step 2: Convert to fraction form
    15,041.68/20,759.64 = 8,756.08/x
  3. Step 3: Cross multiply
    15,041.68x = 20,759.64 × 8,756.08
  4. Step 4: Simplify right side
    15,041.68x = 181,773,068.61
  5. Step 5: Solve for x
    x = 181,773,068.61/15,041.68
  6. Step 6: Final answer
    x = 12,084.63

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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.