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Finding the Fourth Proportional to 84,497.72, 116,482.64 and 64,319.46

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Solution

The fourth proportional to 84,497.72, 116,482.64 and 64,319.46 is: 88,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,497.72 : 116,482.64 = 64,319.46 : x
  2. Step 2: Convert to fraction form
    84,497.72/116,482.64 = 64,319.46/x
  3. Step 3: Cross multiply
    84,497.72x = 116,482.64 × 64,319.46
  4. Step 4: Simplify right side
    84,497.72x = 7,492,100,504.17
  5. Step 5: Solve for x
    x = 7,492,100,504.17/84,497.72
  6. Step 6: Final answer
    x = 88,666.30

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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.