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Finding the Fourth Proportional to 85,952.30, 128,928.45 and 62,332.70

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Solution

The fourth proportional to 85,952.30, 128,928.45 and 62,332.70 is: 93,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,952.30 : 128,928.45 = 62,332.70 : x
  2. Step 2: Convert to fraction form
    85,952.30/128,928.45 = 62,332.70/x
  3. Step 3: Cross multiply
    85,952.30x = 128,928.45 × 62,332.70
  4. Step 4: Simplify right side
    85,952.30x = 8,036,458,395.32
  5. Step 5: Solve for x
    x = 8,036,458,395.32/85,952.30
  6. Step 6: Final answer
    x = 93,499.05

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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.