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Finding the Fourth Proportional to 48,395.49, 72,877.49 and 42,229.06

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Solution

The fourth proportional to 48,395.49, 72,877.49 and 42,229.06 is: 63,591.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,395.49 : 72,877.49 = 42,229.06 : x
  2. Step 2: Convert to fraction form
    48,395.49/72,877.49 = 42,229.06/x
  3. Step 3: Cross multiply
    48,395.49x = 72,877.49 × 42,229.06
  4. Step 4: Simplify right side
    48,395.49x = 3,077,547,897.86
  5. Step 5: Solve for x
    x = 3,077,547,897.86/48,395.49
  6. Step 6: Final answer
    x = 63,591.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.