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Finding the Fourth Proportional to 48,482.84, 66,900.30 and 28,068.38

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Solution

The fourth proportional to 48,482.84, 66,900.30 and 28,068.38 is: 38,730.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,482.84 : 66,900.30 = 28,068.38 : x
  2. Step 2: Convert to fraction form
    48,482.84/66,900.30 = 28,068.38/x
  3. Step 3: Cross multiply
    48,482.84x = 66,900.30 × 28,068.38
  4. Step 4: Simplify right side
    48,482.84x = 1,877,783,042.51
  5. Step 5: Solve for x
    x = 1,877,783,042.51/48,482.84
  6. Step 6: Final answer
    x = 38,730.88

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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.