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Finding the Fourth Proportional to 15,803.48, 23,700.18 and 6,443.48

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Solution

The fourth proportional to 15,803.48, 23,700.18 and 6,443.48 is: 9,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,803.48 : 23,700.18 = 6,443.48 : x
  2. Step 2: Convert to fraction form
    15,803.48/23,700.18 = 6,443.48/x
  3. Step 3: Cross multiply
    15,803.48x = 23,700.18 × 6,443.48
  4. Step 4: Simplify right side
    15,803.48x = 152,711,635.83
  5. Step 5: Solve for x
    x = 152,711,635.83/15,803.48
  6. Step 6: Final answer
    x = 9,663.17

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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.