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Finding the Fourth Proportional to 86,523.80, 129,785.70 and 44,533.40

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Solution

The fourth proportional to 86,523.80, 129,785.70 and 44,533.40 is: 66,800.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,523.80 : 129,785.70 = 44,533.40 : x
  2. Step 2: Convert to fraction form
    86,523.80/129,785.70 = 44,533.40/x
  3. Step 3: Cross multiply
    86,523.80x = 129,785.70 × 44,533.40
  4. Step 4: Simplify right side
    86,523.80x = 5,779,798,492.38
  5. Step 5: Solve for x
    x = 5,779,798,492.38/86,523.80
  6. Step 6: Final answer
    x = 66,800.10

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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.