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Finding the Fourth Proportional to 48,079.16, 72,118.74 and 13,018.81

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Solution

The fourth proportional to 48,079.16, 72,118.74 and 13,018.81 is: 19,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,079.16 : 72,118.74 = 13,018.81 : x
  2. Step 2: Convert to fraction form
    48,079.16/72,118.74 = 13,018.81/x
  3. Step 3: Cross multiply
    48,079.16x = 72,118.74 × 13,018.81
  4. Step 4: Simplify right side
    48,079.16x = 938,900,173.50
  5. Step 5: Solve for x
    x = 938,900,173.50/48,079.16
  6. Step 6: Final answer
    x = 19,528.22

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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.