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Finding the Fourth Proportional to 66,097.32, 91,219.80 and 37,808.46

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Solution

The fourth proportional to 66,097.32, 91,219.80 and 37,808.46 is: 52,178.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,097.32 : 91,219.80 = 37,808.46 : x
  2. Step 2: Convert to fraction form
    66,097.32/91,219.80 = 37,808.46/x
  3. Step 3: Cross multiply
    66,097.32x = 91,219.80 × 37,808.46
  4. Step 4: Simplify right side
    66,097.32x = 3,448,880,159.51
  5. Step 5: Solve for x
    x = 3,448,880,159.51/66,097.32
  6. Step 6: Final answer
    x = 52,178.82

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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.