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Finding the Fourth Proportional to 15,047.04, 20,775.00 and 9,384.08

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Solution

The fourth proportional to 15,047.04, 20,775.00 and 9,384.08 is: 12,956.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047.04 : 20,775.00 = 9,384.08 : x
  2. Step 2: Convert to fraction form
    15,047.04/20,775.00 = 9,384.08/x
  3. Step 3: Cross multiply
    15,047.04x = 20,775.00 × 9,384.08
  4. Step 4: Simplify right side
    15,047.04x = 194,954,140.53
  5. Step 5: Solve for x
    x = 194,954,140.53/15,047.04
  6. Step 6: Final answer
    x = 12,956.31

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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.